Since we're talking restorations, I've been wondering about something too.

When you replace resistors do you stay with the carbon comps or upgrade to carbon films? I know this can be a topic of debate with audio and I've used either comps or films and understand the pros-cons of each from an audio standpoint but what about TV applications?

I use carbon comps in the RF/IF sections and metal film elsewhere. I'm not sure if that's really necessary, but I figure the less altering of the sensitive circuitry the better.