Showing posts with label Cable TV. Show all posts
Showing posts with label Cable TV. Show all posts

Aug 25, 2017

OTA vs. Cable

Satellite and cable TV companies have massive networks, carrying 100s of channels to millions of customers. To effectively service these customers, they use digital compression technologies to shrink the size of the signal, allowing more channels to fit on the cable. When compressing the signal, some of the original data is lost. The result is the picture on your TV loses sharpness and detail.

We have been accustomed to cable and with no comparison, the picture we see is presumed to be the best that can be put out by our TV screen. Many channels are not even delivered in 1080p as we presume. They are still delivered as 720p. The only reason pictures look better is that the new flat screen TVs are adept at up-scaling the signal to make it look better (even though it is not as good as it could be).


OTA means Over The Air. It is difficult to compare the new TV antennas with the old rabbit ears, because the rabbit ears were analog and the new antennas are digital. Using an antenna to pick up a signal over the air provides an uncompressed signal directly to your TV. The results are significantly noticeable and better than cable. A few friends and I have recently added antennas and comparing the picture is as easy as clicking on the input to go from cable to OTA. In every case on each TV the resulting picture is remarkably better with an antenna.


Incidentally, if your cable package blacks out some sports, pick up an antenna, just for game day. They are cheap and can be easily hung on a wall or in a window with a pin or sticky tape. Also great if you want to watch TV out by the patio or pool, no extra wiring, just drag out your TV and attach an antenna.

Jul 13, 2012

Facts About Television

The first time color TV sets outsold B&W was in 1972. That was also the first year that broadcast satellite TV began, although cable had been around for years before that. Only 20% of U.S. households had two or more sets at the time, and almost all portable TVs (usually the choice for a second set) were still black and white due to the technology involved for color. By 1979 no more black and white consoles were made. About six channels were available for watching and the average screen size was 22 inches.

During the 90s the average screen size was 27 inches and the 'giant size screens' were 40 inches. The average TV screen size is about 37 inches today and expected to average 60 inches by 2015.

Later this year super HiDef will be coming at four times the 1080p of today and the TV set definition will be 16 times greater by 2015, likely with prices to match.