/vr/ - Retro Games

So I have this nice little 13" Zenith Space Command that I purchased a few months ago. It's been great so far, but just recently it's been giving me some minor problems that might get worse.
With both my NES and Genesis hooked up to it, it will periodically flicker like the tvs about to turn off and can sometimes get saturated the game that's playing with a white color, if the game screen transitions, scrolls, or a bright color flashes.
It's a little hard to describe as I'm not a crt expert, but I THINK it might be a bad capacitor, but I'm not certain. I like this little tv and I'd like it to not crap out on me.

If anyone is willing to offer some sage advice on what I should do, that'd be great.