Strawberry panic! That would have been nice
I would say, almost all my favorite time fillers and fun/meaningless action and comedy shows. But not my personal favorites I become emotional about today. It is said if you change things in the past you yourself would change and then you would not be here, a different version of you would be. Or you might not survive to your current age. If I could take full and complete knowledge of all things I am aware of now with me to that time, then yes, every show, as some of the others have stated.