It should work just fine that way. The tube tv I use is old but not as old as that Commodore. lol. Mine has the yellow/white inputs. Not the best audio, but it works for when I'm bored in my office an feel like blowing **** up. LOL
Sirscrapalot - A Canadian Doctor, gives you an annual check-up. What does he does he do first? He body checks you! ;)