i've heard these 2 terms but still not sure about the differences
2006-07-21 00:49:37 · 4 answers · asked by mzeus 2 in Consumer Electronics ➔ TVs
Cable TV uses VHF frequencies (similar to FM radio but higher frequency) to broadcast picture and sound over a cable line. Your TV has a built in VHF tuner that can tune into thes frequencies directly (from channel 2 to about 70). The problem with analog is that it takes much more bandwidth space on the cable line so there is a very limited amount of channels, also the picture and sound is more likely to degrade from the source to your TV.
Digital TV sends the video and picture through the cable line digitally (using binary code 1's and 0's) similar to the way a DVD player stores information. This allows much more information to be sent via cable (approx 1000 channels) in addition to extra features such as interactive on-screen guides and video-on-demand. Since your TV would still only have an analog tuner, you need a digital box to receive these signals, and sends them to your TV in a standard VHF channel 3 output. This also provides a much clearer picture and sound since the digital signal is less likely to degrade.
2006-07-21 01:34:50 · answer #1 · answered by Rob 6 · 2⤊ 1⤋
Cable TV is stereo with about 100 channels.
Digital TV has some video on demand movies, no need to call the cable tv company, with stereo to limited HDTV.
2006-07-21 10:49:58 · answer #2 · answered by Neil 3 · 0⤊ 0⤋
Digital cable gets its channels from Satellite and re-broadcast them to you, so you should go Satellite to get Real Time TV and the best picture and options out there!!!
2006-07-21 03:24:06 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Digital TV gives you some interactive capability - like an on-screen TV guide ( channel menu) that lets you set reminders, among other things.
but not as many capabilities as you get with a TIVO.
2006-07-21 00:54:44 · answer #4 · answered by nickipettis 7 · 0⤊ 0⤋