1981 Magnavox with a problem.

[Firebird]

Can anyone tell me what component would cause this set to have a near perfect black and white picture. No color, no sound. Picture does streach about a half an inch to the right. Tuner seems to work perfect on basic cable and of course there is no analog broadcast tv anymore. If you can help you will be a hero. TV has not played regularly since 1986 when it died right in the middle of a Joan Rivers joke. Of course i knew nothing about tv repair back then.