Amateur radio operators already use old analog TVs to receive amateur TV transmissions, since we "hams" can use either the old analog or new digital methods of transmitting video. Any cable-ready TV will receive on cable channel 57, which is 421.25 MHz, the most common amateur TV repeater output, and cable channel 60 (439.25 MHz) is the most common repeater input frequency. So, to have a 2-way video conversation, one guy transmits on channel 60, and receives on channel 57, and the other guy does the opposite.
That is good news. Cabel ready TV channel 57... will this work on direct TV & Dish TV too?