Which sitcoms give you nostalgia?

I grew up on Friends and Seinfeld on Nick at Nite and TBS. I watched other sitcoms from the 60s, 70s and 80s much later like Bob Newhart Show, Mary Tyler Moore Show, Dick Van Dyke Show, All in the Family, Taxi, I Love Lucy, Happy Days. I saw reruns of those shows on throughout the years. Sitcoms like Will & Grace, Everybody Loves Raymond, The King of Queens, The Nanny, Frasier, Cheers, Golden Girls I watched much later. Which sitcoms bring back memories for you from when first watching back in the day?