This can be either a post to the grid or to Stories, but you’ll have to tag @TGIFridays in whichever one you post; as social media pros are no doubt aware, participants will have to check their ...

well, at least since the late ‘90s. “What is the definitive TGIF series?” The original run of the Friday night block known as ABC’s TGIF ran from Sept. 22, 1989 to Sept. 8, 2000.