I said 7, but immediately realized how far off that is. It's 10+ easily for me.
My most re-watched shows are anime and comedies.
Death Note, Code Geass, Berserk and FMA I've watched 5-10+ times each and many others are in the 3-5 range (HxH, Bleach, Basalisk, Samurai Champloo, Tri-Gun, Outlaw Star, Gantz, and I could go on and on)
For regular TV shows, I've watched
Archer (7ish)
Always Sunny in Philadelphia (3x)
Rick and Morty (A lot, it's a background noise show)
True Detective S1 (4x)
Deadwood (2x)
Westwood (2x)
Breaking Bad (3x)
Parks and Rec (3x)
Bojack Horseman (2x)
Friends, How I met your Mother, Sex & the City and Gilmore Girls (2-3x) - I dislike all of these shows, but my life goes through periods of loving them and I like spending time with her, so i'll watch w/e she likes.
Family Guy, Simpsons, Southpark - I've watched every episode of all 3 of these, a lot of Simpsons/Family Guy is terrible and I honestly don't know why I still bother watching Family Guy, it's awful every week, but I've watched soooooo many fucking episodes multiple times from all of these.
I'm sure there are many more, but those are the ones coming to mind right now