Seconding Parks and Rec, especially if you like The Office! Neither of these are sitcoms, but still, good comedies.

shion, did you ever watch 3rd Rock From the Sun? You can watch it all on Youtube. Newsradio is an awesome 90's sitcom that fits right inbetween some of the ones you've listed there. I will also second Nicky's recommendation of Just Shoot Me. ALSO WATCH NEW GIRL YOU WILL LOVE IT FIND IT ON NETFLIX RIGHT NOW