Satellite and Cable
Satellite television companies in the United States, such as Dish Network and DirecTV, started to carry HD programming in 2002. Satellite transmissions in the U.S. use various forms of PSK modulation. A separate tuner is required to receive HD satellite broadcasts.
Cable television companies in the U.S. generally prefer to use 256-QAM to transmit HDTV. Many of the newer HDTVs with integrated digital tuners include support for decoding 256-QAM in addition to 8VSB for OTA digital. Some cable television companies, such as Comcast, started carrying HDTV in 2003. Currently, HD programming is carried by all major television networks in most DMAs, including ABC, CBS, NBC, FOX, PBS, The CW, MyNetworkTV and Telemundo; and on some independent stations.
Read more about this topic: High-definition Television In The United States
Famous quotes containing the words satellite and/or cable:
“Books are the best things, well used; abused, among the worst. What is the right use? What is the one end, which all means go to effect? They are for nothing but to inspire. I had better never see a book, than to be warped by its attraction clean out of my own orbit, and made a satellite instead of a system.”
—Ralph Waldo Emerson (1803–1882)
“To be where little cable cars climb halfway to the stars.”
—Douglass Cross (b. 1920)