Cliff Benham wrote: > Are you referring to CBS, DuMont, RCA-NBC, General Electric or > Westinghouse? > > All produced TV sets with their name on them and all produced content > for broadcast. And all of the TVs could receive everyone else's content! That's what makes the OTA system unwalled. As a matter of fact, by the time cable came around, late 1970s early 1980s, there were many more than just three channels available, at least in markets of any size. The UHF band made that possible. Bert ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.