As for me, I can't stop watching
Spongebob, Arthur and Monster High
Once I start, I just keep plowing through episodes like crazy @A@
I also find Spongebob and Arthur very soothing to fall asleep to for some reason
Powerpuff Girls, Totally Spies, Winx Club, W.I.T.C.H, My Little Pony, MoonDreamers, Sky Dancers, The Sonic Cartoons, Pac-Man, and don't forget the most hilarious Super Mario Bros. cartoon with a terrible wrongful colors.