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PRISM (Philadelphia Regional In-home Sports and Movies) was an American regional premium cable television channel in the Philadelphia metropolitan area. Launched in September 1976, PRISM was primarily distributed through area cable systems, although it was also available through a scrambled over-the-air signal on WWSG-TV (channel 57, now WPSG) from 1983 to 1985.
t. e. Advanced Television Systems Committee ( ATSC) standards are an International set of standards for broadcast and digital television transmission over terrestrial, cable and satellite networks. It is largely a replacement for the analog NTSC standard and, like that standard, is used mostly in the United States, Mexico, Canada, South Korea ...
In November 1990, Primestar launched as the first North American direct-broadcast satellite service. Hughes's DirecTV, the first national high-powered upper K u -band satellite TV system, went online in 1994. The DirecTV system became the new delivery vehicle for USSB. In 1996, EchoStar 's Dish Network went online in the United States and has ...
Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
Digital television sets (equipped with ATSC tuners) are often capable of viewing a baseline set of unencrypted digital programming, known as basic cable or low-tier channels, which typically include local network television affiliates. According to FCC regulations, television providers must provide "separable security" for accessing encrypted ...
CaribVision Inc. Caribbean Media Corporation (CMC) CaribVision is a 24/7 English language Caribbean cable-TV channel based in Barbados, with affiliate studios in the United States. DFH Network. DFH Network Inc. Turkish Pay-TV service based in Santa Ana, California comprising 7 channels.
Reception for Prism TV has been generally positive, with many observers feeling that giving consumers the option in areas where they might have been stuck with the local cable company if they weren't able to receive satellite television (due to either technical reasons or not being allowed through their landlords if they rent their homes ...
Leitch Viewguard is an analog encryption standard used primarily by broadcast TV networks in North America. Its method of scrambling is by re-ordering the lines of video (Line Shuffle), but leaves the audio intact. Terrestrial broadcast CATV systems in Northern Canada used this conditional access system for many years.