[Charlie]

I have/had a few late-50's motorola 21" black and white sets. One common thing I've noticed between them is the tuner... kinda loose and sloppy feeling. Being that anything like this will simply stay on Channel 3, it's not quite as much an issue as it was before signals went all digital.

Currently, I have two '59 motorola 21" sets... both series strung tube heaters. If one heater goes out, they all go out.

Peaking coil replacement is common. Seems they get corroded and break in two or fall apart... I had that problem in two Moto's.

Surprisingly, one of those Moto's still has all the original caps and electrolytics and plays well.

Phil is right... it will likely do you some good to first practice on an old radio first so you can get the feel for it. Your TV does not use printed circuits.. it has point-to-point wiring. If you can, get a radio without printed circuits to practice on. A good place to start would be any old Zenith AM radio from the 1950's. You can usually pick up a Zenith tube radio pretty cheap. You don't have to get anything too fancy... it's just going to be for practice before you tackle the TV.

The fact that your TV already plays is great. Like Phil said... it should only get better.