VCRs are essentially their own little TV stations. Almost all VCRs have a switch on the back that allows you to select channel 3 or 4. Thevideo tapecontains a composite video signal and a separate sound signal. The VCR has a circuit inside that takes the video and sound signals off the...
Oftentimes, Cable TVs are referred to as CATV, which stands for Community Antenna Television or Community Access Television. They are called as such because they utilize community antennas in receiving broadcast signals that are retransmitted to a number of subscribers – in this case, homes and es...