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Showing posts with label Video. Show all posts
Showing posts with label Video. Show all posts

Friday, March 28, 2014

Saturday, March 15, 2014

The History of UHF-TV


After television was launched to the public, there was a problem.

Everybody loved it. And they wanted in on it.

In the late 1940s and early 1950s, radio stations began adding or moving to more spacious studio spaces in anticipation of the time they will be able to add the delicious letters "TV" to their station letterheads and business cards. They were assured that TV would eventually make radio obsolete. So they began planning for the jump to TV.

But there were only 13 original VHF channels originally assigned for television in the US.

And there WAS once a VHF TV Channel 1. The VHF dial didn't always start at Channel 2.

Here's what happened.

In the early 1940s, the FCC was in a pickle. They had to find spectrum space for FM radio, TV and early mobile phone/emergency radio use. They originally settled on 42-50 MHz for FM radio.

A 1940s radio with the original 42-50 MHz FM radio band.
But TV channel 1 used 44-50 MHz. So they moved the frequency range for Channel 1 around the lower VHF spectrum, causing confusion with viewers, broadcasters and manufacturers. Finally, they concluded there would be no Channel 1. And VHF TV channels would begin at Channel 2. The FM radio band was also moved to 88-106 MHz, then completed at 88-108 MHz.

But this now meant there would be one less channel for TV, leaving only a dozen channels. And the FCC was swamped in TV station license applications.

And more importantly, due to short spacing between stations on the same channels and unforeseen atmospheric conditions, there was interference. Lots of it. Especially in the Northeast. New TV spectrum had to be carved out to satisfy everyone.

Finally in 1952, the UHF TV band was created out of was once surplus radio spectrum for the military. UHF had 69 extra channels, boosting the overall TV channel selection to 82 channels (but later down to 81. In 1963, UHF TV Channel 37 was reserved for radio astronomy purposes and to this day, there are no UHF TV stations - or anything permitted to operate on Channel 37), but still enough for nearly every well financed radio station to have a TV station of their own. With room to spare for many others.

There was one little problem. People didn't know what UHF was then. And until 1964, TV set manufacturers weren't required to even include UHF TV on their sets.

So some enterprising electronics manufacturers invented the first "set-top" boxes, tuners for UHF TV





These were still made well into the '70s and even early '80s for older TV sets made before the All-Channel Receiver Act in 1964!
Most dealers offered them as loss leader freebies for your new TV set or as a low price upgrade for your existing set. You could set it up yourself (if you were more technically inclined.) Or have a serviceman from the dealer do it for you.

They were also sold by mail order.
This automatically created a new problem. Broadcasters began viewing UHF from the start as a lesser TV band. Most viewers still had VHF only TVs and didn't want too much fussing around with the adjustments (they weren't very stable in the early days of TV. As someone who's had to fix a wonky picture on an old 1950's black and white TV set, I can assure you they weren't much fun. There was a pretty good reason why parents rarely let their little kids near the TV in those days.)

And most were satisfied with that few choices they had. Adding a UHF converter meant more knobs and thus more things to go wrong.

And 20 years after the All Channel Receiver Act, some people STILL didn't know what UHF was!
Also, UHF signals by nature travel shorter distances than VHF channels. They also more easily blocked terrestrially by buildings, hills and even trees. To gain a similar broadcasting range as a typical VHF station, they needed 50x the power because of their higher frequencies.

For example, to get the same signal coverage as a VHF TV station on Channel 5 at 100,000 watts, a UHF TV station on Channel 22 needed 5,000,000 watts - that's right - FIVE MILLION WATTS.

That also appears the power bill of the station. Which means you had to sell more advertising and/or charge more for it than the VHF stations. And for a brand new TV station on a fairly unknown and problematic TV band and dubious programming with few, if any stars, the odds didn't look good.

So the many radio stations with ambitious TV plans that couldn't get a spot on the VHF-TV dial simply gave up on them. In fact, contrary to the predictions that radio would become obsolete after TV was introduced, radio simply moved into the era of the disc jockey and specialized music formats as the old-line network radio programming model moved off radio and onto television.

However, there were HUGE areas of the country that were too far from metropolitan areas with VHF stations. And adding stations to the already overcrowded VHF band would increase interference to the existing stations. Some areas, such as Yakima, WA, Peoria, IL and Huntsville, AL became UHF-only "islands", areas where all local broadcast TV is UHF. Public TV stations and upstart TV networks such as DuMont and the fledgling ABC network had no other option than UHF in most areas.

In the 1950s, some of the very first UHF TV stations often came on the air wealthy and often left the air broke - often within a year. These were often stations within the receiving area of VHF stations with established programming and network affiliations. Simply because no one was watching them outside of people who worked at the stations and their families. And even most of them were watching the other channels!

And that was another problem. When a major TV network initially affiliated with a UHF station in an area where a VHF station would later sign on or lose another network affiliation, the network would habitually create loopholes in their already lopsided affiliation contracts that allowed the network to end their affiliation with the UHF station with little notice to go onto the VHF station.

And this even happened with some higher number (Ch. 7-13) VHF stations in areas where VHF dominated. (NBC's original affiliate in Puget Sound was KMO-TV 13, and CBS was on KTNT-TV 11, both out of Tacoma, WA. And both lost to lower-number channels in Seattle.)

In fact to this day, lower number TV channels are preferred to higher ones with TV advertisers because most TV viewers tune from the lowest channel numbers up first. And more slowly and carefully than higher channel numbers, thus increasing the chances the viewer would see the advertising.

The great benefit of a network TV affiliation was the hardest part was already taken care of for you - programming. With the insertion of local TV advertising, a station can become instantly profitable with the big stars and professionalism of the major TV networks. Without a major TV network, you were scrambling for whatever you can get to put on the air. And there were only so many movies, kineoscopes and cartoons available back then. You had to quickly invent programming by the seat of your pants. And it became too much for the upstart UHFs.

So in most major cities, UHF stations were either non-existent or struggling public or even rarer, independents through the '50s, '60s and 1970s. In fact, Seattle only got it's first UHF TV station in 1985 (KTZZ-TV 22, now KZJO "Joe TV")

Most TVs weren't even equipped with UHF antennas (or new set owners didn't know what those little round wire things were in areas where UHF TV was largely unknown and threw them away), The simplest UHF antennas were small cheap loops you could affix to the back of your TV. They worked best in areas closer to the UHF station's transmitter and only fairly in outlying suburbs. I remember after Seattle's KTZZ-TV 22 went on the air installing one of these on my mom's console TV in Lynnwood, WA. But the picture was ghosty and variable and often fluctuated with things as simple as passing airplanes or even the movement of the metal wheels of my mom's wheelchair. That was the most apparent thing about over the air UHF-TV - nearly anything could interfere with the signal if you were beyond a point where you could visually see the station tower.    

UHF was coming to a slow painful death and it took an act of Congress to change that. It became known as the All Channel Receiver Act of 1964, which forced manufacturers to incorporate UHF tuners into their TV sets. This helped UHF TV on the consumer end, but programming, sales and merely staying alive without major network affiliations for the UHF stations were another. In fact, by 1971, there were only 170 full power UHF stations in the US. And over a 1,000 VHF stations. But UHF stations were still dying. Mostly because of the difficulty in getting major advertisers to take independent UHF TV stations seriously.

It was harder to get by on I Love Lucy and Honeymooners reruns and local used car dealership commercials than it looked.

There were attempts at starting a fourth major TV network. DuMont, ironically the very first American TV network, was struggling against better financed rivals NBC, CBS and the upstart ABC TV network and went off the air in 1956. Leaving only ABC, NBC and CBS as The Big Three (as the ABC, NBC and CBS TV networks came to be known for decades) commercial networks and by the '60s, NET (later known as PBS) for public TV.

That wasn't to say people were giving up on UHF TV. Cable TV was still in it's infancy and offered no exclusive programming. Just a clearer relay of TV stations already on the air. And most were required to carry the UHF stations, which actually helped UHF.

Enter The Overmyer Network (later known as The United Network.)

Some United Network affiliates were already established VHF stations with full major network affiliations (such as KOB-TV 4 in Albuquerque, NM, an NBC affiliate.) They just wanted in on the special deal United Network offered affiliates mentioned below
The Overmyer Network began as 5 UHF TV stations owned by Toledo based businessman Daniel H. Overmyer. It's flagship station was WDHO-TV 24 in Toledo, OH.

Overmyer was a social conservative who was against "smut". So there. But he also knew there were lots of entertainment starved independent TV stations across America. Ones that would do anything to move into the "affiliated" category.

And Overmyer gave them a sweet deal; an unheard of 50/50 profit share. Affiliates quickly began signing up.

The network launched nationally on May 1, 1967 as The United Network (and not related to the United Paramount Network or UPN of the 1990s/early 2000s.)

And exactly one month later, the entire Overmyer/United Network was history.

In the final autopsy, it was determined the launch of the network came at the worst possible time of the year. When major TV sponsors were at the end of their yearly advertising budgets. Had the network held out their launch until the new television season in September, they would have had a better chance when the sponsors were in a better spending mood. And since the station used costly proprietary Bell System video lines to relay programming to affiliates, that also ate into costs. It was one thing for 5 affiliates, entirely another for 35.

And more embarrassingly, the national United Network only had one show. A critically acclaimed, but publicly ignored daily variety/talk show called The Las Vegas Show.

The Overmyer/United Network was such a complete and thorough disaster that it was pretty much decided a fourth broadcast TV network was too many and was not attempted again until 1986 when Fox TV came on. And coincidentally, the headquarters of Fox are in the same New York City building that once housed the DuMont network 60 years earlier!

So UHF trudged along. Stations were still frequently sold, still went dark (off the air) or were converted to public TV stations. Outside of those "UHF Islands" mentioned earlier, there wasn't much money in UHF.

With not many stations on UHF, the uppermost channels of the traditional UHF band, Chs. 70-83 were reassigned for the fledgling cell phone industry (In the days before spread-spectrum analog cell phones, it wasn't unusual to pick up entire cell phone conversations on these channels!) But there were no actual TV stations that far up the spectrum (remember, the lower channels are the most preferred) and the various translator (relay) stations in that area were eventually moved to lower channel numbers. Few stations were ever licensed above Channel 69 anyway. And none existed at the time of this switch.


One early experiment merged the concept of pay TV with broadcast TV in 1977. A New York TV station WWHT-TV 68, owned by Wometco Enterprises, offered The Wometco Home Theater. It was essentially a video descrambler box and WWHT ran uncut, often first run movies and sports programming. And it was actually successful (WHT lasted until 1986 and even spawned imitators.)


(Click to enlarge)

The Wometco Home Theater box
The 1970s and 1980s also brought evangelical TV networks such as Trinity Broadcasting Network, Spanish language networks such as Univision and Telemundo and home shopping networks to UHF broadcast TV.

But most commercial UHF TV was still viewed by major sponsors and TV viewers as scrappy, unpolished, unprofessional and weird. The college radio of TV. A fact not lost on parody king "Weird" Al Yankovic who released a parody movie of UHF TV called, what else?, UHF.


In the 1980s, some markets such as New York, music video channels began appearing (After Wometco Home Theater folded, WWHT-TV changed to this format.) Boston and Atlanta, GA also had all music video channels on UHF. However, this proved to be problematic. First, cable video music channel giant (then) MTV flexed it's muscles with the music industry and by the late '80s, effectively cut off the flow of new music videos for these stations and these music video channels converted to the regular third or fourth rate programming of the typical UHF TV channel. Secondly, even with music videos, these few over the air free music video TV stations were still struggling.


It took Fox TV, with it's heavy roster of UHF affiliates and trendy hit shows such as The Simpsons and 21 Jump Street before the tide finally began to turn for UHF TV. The once scrappy programming of UHF began being replaced by more polished programming. Syndicated daytime talk programming such as Jerry Springer, Montel Williams and countless others came and replaced the boring afternoon movies.

And infomercials. LOTS of hour long, boring infomercials. often running 12 hours or more consecutively each day. Something had to pay the bills.

With the success of Fox, potential fifth and sixth major networks sprang up. Such as UPN and The WB (now merged as The CW), PAX (now iON) and expansion of the Spanish, home shopping and religious networks put more UHF TV stations on the air.

But a massive change was coming. A new system, known as DTV or "digital TV" began being implemented in the late 1990s. This system actually used UHF TV channels to relay higher definition programming and all but the smallest, low power stations made the upgrade. In 2009, most analog TV broadcasting came to an end in the US, and most TV stations now broadcast in digital on UHF. The low power stations must switch to digital in 2015.

The benefit of digital broadcast TV was it used less bandwith than analog broadcast TV, freeing up precious bandwith for first responders, wireless internet and other services. With the need for less bandwith, the UHF TV band was cut even further from Chs. 14-69 to 14-50.

The drawback is you really have to be in an area close to the TV tower, as over the air digital TV signals show absolutely NO mercy. In the analog TV days, you could watch TV with a slightly "snowy", slightly fluctuating, but fairly acceptable viewing signal if you were in outlying areas away from the TV station's tower. With over the air DTV, you have to be a LOT closer to get a perfect, interference free signal. Otherwise, the video would freeze in a pixelated mess and even the audio would cut out at times, something that never happened with analog broadcast TV.
   
And there's talk of cutting the UHF TV band even further. Or even ending all over the air broadcast TV, thus freeing up the entire UHF TV band for other, more high tech purposes.

(UPDATE: More on the history of UHF here: http://www.uhftelevision.com/ )

Thursday, March 13, 2014

Frankenstations


They're technical anomalies, transcending medium, legality and current technical standards to become something they were never meant to be.



They're called "Frankenstations". Or "Franken-FMs". Because while most FM radios can tune down to 87.5 FM, the FM radio dial in North America legally begins at 88.1 MHz and ends at 107.9 MHz.

However, 87.7 MHz (or 87.75 MHz to be exact), is/was the analog audio carrier frequency for VHF TV channel 6. Since the end of World War II until the DTV switchover in 2009, people who live in areas with a local TV station on Channel 6 could hear that TV station's audio signal on 87.7 on their FM radios, a fact not lost on the Channel 6 TV broadcasters (KHQ-TV in Spokane, WA promoted this for years.) And it was offered as a way to hear the audio portion of the Channel 6 TV station when you were in your car or away from a TV.

Bear in mind this wasn't a deliberate service the station offered. Just an anomaly of how the radio/TV spectrum was carved up. And unique only to analog VHF TV Channel 6 because the Channel 6 audio carrier frequency was coincidently in a tunable portion of the FM radio dial at 87.75 MHz.

However, in the early 2000s, several low power analog VHF TV stations began popping up on Channel 6. They weren't purposed as traditional TV stations, but as FM radio stations. This is why they are called "Frankenstations" An FM radio station using an audio frequency for TV.

The first Frankenstation was KZND-LP in Anchorage, Alaska. "87.7 The End" went on the air in 1999 and immediately outraged competing broadcasters who thought KZND was cheating and complained to the FCC. As it turned out, the station was using an overlooked loophole that allowed the audio portion of a TV channel to not be synchronized with a video image.

However, being an FM station on the TV band isn't as easy as one would think. First, you're technically a TV station. This means you must at least run some image on the video carrier. Which KZND was not transmitting, so the FCC forced them to start doing so. It wasn't enough the station had the ability to transmit a video image, but it had to actually do it to be within the law, as it was technically a TV station first. A simple graphic card to be broadcast over their video carrier was all the station needed to become legitimate.

Today, KZND now broadcasts on a real FM frequency (94.7.) 87.7 in Anchorage is now a jazz station called KNIK


WLFM-LP in Cleveland, Ohio actually used a Western Digital screensaver as their video carrier image!

Second, you have to be a lot more quieter than standard FM stations because you still must broadcast according to television technical standards. This meant a lot of the problems of a quiet uncompressed FM radio signal, such as "picket fencing", that "fwip-fwip-fwip" sound you hear on FM radio as you drive farther out of the station's primary service area is far more apparent well within the primary service area on an 87.7 Frankenstation. You can't broadcast in stereo either. While Zenith invented both FM Stereo and MTS Stereo TV transmission, the two systems are incompatible. All Frankenstations are mono.

And Nielsen Audio (formerly Arbitron), which measures radio ratings regards the Frankenstations as actual TV stations and doesn't count them amongst actual FM radio stations.   

However all low power analog TV stations, which had been exempt from the 2009 American digital TV switchover must change over to digital themselves by September 1, 2015.

Which will mean the end of the Frankenstations because the digital signals can no longer be received over standard FM radios.

However since the analog to digital TV switchover there's been talk of expanding the FM radio band down to 76 MHz (similar to how the AM radio band was expanded from 540-1600 kHz to 540-1700 kHz in the late 1980s.) Which would incorporate the Japanese allocated FM radio band (which runs from 76-90 MHz) into the American FM radio band and allow American FM stations to broadcast on those frequencies. But that's only going to happen when the current FM spectrum gets so crunched, there is no alternative.

And we're already pretty much there in some parts of the country.

Thursday, January 16, 2014

"Papa Wants The Best For You" Danny Aiello (1986)


Actor Danny Aiello played the title character in the music video to Madonna's 1986 classic "Papa Don't Preach". However, Aiello never liked the theme of the Madonna song (too presumptive that "Papa" would reject his daughter or lash out at her.) So he recorded an answer video - from Papa's point of view.

Needless to say, almost nobody remembers this.....

Monday, January 06, 2014

Before They Were Stars: Pat Benatar


Pat Benatar didn't just open the door for women in rock. This little woman with the HUGE voice absolutely KICKED the door in. Right off the hinges. 

But before her mega-platinum career one of as rock's most influential female superstars, she was.....a lounge singer


"Coxon's Army Live from Sam Miller's Exchange Cafe" (Trace Records, 1974), was produced as a reportedly unaired local TV special for Richmond, VA public TV station WCVE and is the very first album she appeared on.


This album also features a cover of "Theme From Shaft" but no indicator if she actually sang it (perhaps the female backing part.) This is a $500 record in mint condition. About 1,000 copies were pressed and that's a VERY short run for any record.

Click to enlarge

"Respect" (1974)


"If He Walked Into My Life" (1974)



"Can't Help Lovin' Dat Man" (1974)


"Day Gig" Pat Benatar (1974) This is the first headlining single she ever recorded.

Also see Before The Were Stars: The Cars

Sunday, December 22, 2013

The WPIX-TV Yule Log

Ahhh......Christmas in New York.

Since 1966 (save 1990-2000), the WPIX-TV Yule Log has been gracing NYC TV screens every Christmas Eve and Christmas morning. Continuously and commercial free. Turning RCA console TVs to 60 inch flat screen into instant cozy fireplaces for New Yorkers everywhere.

Why? Well, New York City doesn't have many fireplaces. People mostly live in apartments. So the producers at WPIX-TV thought this would be a nice way to give the illusion of being around a big fireplace without all the fire safety issues of living in a typical New York City apartment building.

It was originally filmed in Gracie Mansion, the home of the mayor of New York. It was originally a 17 second video loop that on repeat, you can see the edit point (the flames suddenly flickered awkwardly.) However the producers removed a fire grate so that the fire could be seen better and a stray spark damaged a nearby antique rug valued at $4,000.
When this loop wore out in 1970, the producers went back to the station film archive to find the master reel. And they couldn't find it! They requested a retake at Gracie Mansion. But the producers were denied. After the rug incident, the mayor's office wanted no more filming of the fireplace at Gracie Mansion.
So the producers searched until they found a similar fireplace - in California!

The 1970 shot was over six minutes in length (and no rugs were destroyed during this filming.)
In the 1980s, commercial VHS video tapes were made of fireplaces similar to the WPIX Yule Log - a testament to the program's influence well beyond the New York City area. 



This program also featured a stereo simulcast of the music on WPIX-FM until 1986.
However in 1989, it was announced The Yule Log would no longer be broadcast on WPIX-TV. Being commercial free, it wasn't making money and the new station manager wasn't having any of that. And for 10 heartless years, New York City TV viewers pleaded with WPIX management to no avail. The Yule Log wasn't seen on WPIX.
In 2000, a web site was created to petition WPIX to bring back The Yule Log. But it was December 2001 (after the 9/11 attacks) when WPIX gave in and The Yule Log returned. Where it's still the most watched program in New York City on Christmas.

Sunday, December 15, 2013

The JP Patches and Stan Boreson Holiday Special


Growing up in Seattle, we had some of the very best in kids programs on local TV. KIRO-TV Ch. 7's J.P. Patches, KING-TV Ch. 5's Stan Boreson, KOMO-TV Ch. 4's Captain Puget and KTNT-TV (now KSTW) Ch.11's Brakeman Bill. In the '60s, all four programs competed against each other, but it was always a friendly rivalry.

While all groups of kids had their favourites, the perennial and longest running was J.P. Patches. After J.P. Patches' show ended in 1981, JP would host specials and pledge drives for public station KCTS-TV Ch. 9, featuring rare archived clips of his show. But he ALWAYS paid tribute to his competitors in every one - VERY classy.

This is a special which ran on The Seattle Channel (the local Seattle public access cable channel, made sometime in 2009/2010 I guess.) bringing together J.P. Patches and Stan Boreson and playing episodes of their classic Christmas shows.

Watch here:

http://www.seattlechannel.org/videos/video.asp?ID=4040606&file=1

In "How Santa Got His Elves (More Or Less)" the King of The North was played by legendary KIRO-TV sportscaster Wayne Cody....

Enjoy!

Wednesday, October 23, 2013

Canoodle


You know how it is.

You hear an odd and unfamiliar word......And promptly embarrass yourself around the world.


That's what happened to CIVI-TV anchor Andrew Johnson in 2012. The video of this went viral, all over an obscure word.....


Thursday, September 26, 2013

Chinese Import Video Camera Glasses: A Review

A week ago on a lark, I ordered a pair of Chinese made video sunglasses. They only cost $16.49 - including shipping on eBay.

So I ordered and it did arrive. Quickly...A couple days ago. I got a package from Shanghai. (These photos were taken on my Android tablet. Bear with me.)




 
Comes with carrying case, USB cord and lens cleaning cloth.

"I make these look good..."
The instruction booklet

This also uses a 2 to 32GB Micro SD card (not included.) I pulled a 2 GB card out of one of my old cell phones and reformatted it for use on this.

I was more or less expecting the worst. But they were surprisingly good for the price.



The video quality isn't 1080pi HD (but what were you expecting for $16.49?) But a hell of lot better than what you'd expect for that price. I've seen worse video from $200 cell phones.

The downside:

The video files they record are HUGE in pure AVI format (a little over 1 GB for a 15 minute video shoot) The video here took about 180 MB. So to upload onto the web, you'll need video compression software. I used FFConvert for Linux and converted it to a 27 MB MP4 file. But there are a number of these available depending on your operating system.

The lens is just above the bridge of your nose on these glasses. So you will need to keep your head slightly tilted down (don't shoegaze.) I deliberately aimed my head lower to keep as many faces as possible out of this video (which was shot at a library. I picked it to demonstrate average indoor lighting conditions.)   

The built in mic is extremely sensitive in video recording mode (it encodes in uncompressed PCM.) And if you're talking in a normal volume, you'll overmodulate (cause distortion.) So keep your voice very low when recording.

For straight audio MP3 recording (no video), they're very bad. They encode at 8kHz at 128kbps and sound extremely muffled.

I don't know the overall battery life because first, the instructions say the red LED light will stop flashing when fully charged. But after 24 hours of initial charging, it never stopped flashing. Plus as it takes 1 GB for 15 minutes of video and my micro SD card was only 2 GB, I'll have to buy a full 32 GB card to really find out.

The photos are also pretty bad. And the problem is you have to make a time.txt file in the root file of this for the automatic time stamp on the photos (the time reads in 24 hour UTC and not in standard AM/PM. I tried this in every configuration, but I could never get it to read correctly.) It always read as the default 2008/12/31 00:00:00 (give or take a few seconds)



While the photo and audio capabilities are downers, that's not the BEST feature of these glasses, which is the video recording capability. These glasses have quite a few uses. I wouldn't recommend them for recording concerts, namely because of the sensitive mic audio issues as well as the mysterious battery life. But for quick on the spot video recording of public events incognito, they're PERFECT.

Rating *** (3/5 stars)

You can buy them here:

http://www.ebay.com/itm/111137776719?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

(This review was made uncompensated and totally independent, based only on my own experience. - Larry)