Introduced in the 1970s and very popular throughout the 1980s and 1990s ... sets (for a novel rear-projection device, see SPUD). Although RPTVs were bulky, no CRT TV could have been built with ...

See front-projection TV and HDR. A data projector has HDMI inputs ... See DLP and 3LCD. In the 1980s, the first data projectors weighed more than 40 pounds, using a single cathode ray tube ...