"Paul Feaker" wrote in message
...

It's the same video signal. With the video out the pure baseband
video is applied to the video amplifier which goes to the tube and
the sync seperator or more than likely to a switch which chooses
video input from instruction by the set's microcontroller. When you
go through the 75 ohm cable, the VCR puts the aforementioned
baseband signal, with an FM modulated audio subcarrier...

Carrier, not subcarrier. The sound is not transmited as part of the video.
The color signal _is_ on a subcarrier.