Almost all the shows i watch over and over and again are ones with 7+ seasons,

90's star trek (tng ds9 voy) all 7 seasons, MAS*H 12 seasons, Frasier 11 season, Scrubs 8 season (I skip season 9 and refuse to acknowledge its existance), Red Dwarf 8 season (+ more after the revival decades later), X-Files 11 seasons, How I Met Your Mother 9 seasons, Freinds 10 seasons, Stargate SG1 10 seasons, three seasons is to little to grow a fallowing and not enough for you to rewatch