CRT (Tube) TVs are a fucking goldmine for a retro-gamer. Almost all HD/4K TVs can't handle older consoles for shit due to the sometimes HUGE input lag that happens when converting analog signal into digital signal.
Best example I can give of this is playing any of the PS2 DanceDanceRevolution games on a 4K TV. The good news is that you can change the timing settings (sync between steps and music) in the options menu. The bad news is that it only goes up to like +/-20 and even then it STILL isn't enough of a fix to get the steps to sync up with the music. On a CRT, depending if you use composite or component cables, you barely have to touch that shit at all.