Lots of the shows everyone has mentioned are still on TV, on channel 215 at least for me. It's called Nickelodeon GaS (Games and Sports), they have all the old school games shows and cartoons (well most of them). There's also another Nickelodeon channel that plays more of the cartoons that Nick had but none of the game shows, it's on channel 126 I believe. If you have cable you could probably go find them, they're just on these obscure channels that nobody hears about.