Another Obligatory - Scott’s Tots. Unwatchable, I skip the entire episode.

Less obvious - HIMYM’s Slap Bet, in the later seasons. In fact most of the running gags were just… hollow, by the end. To the point they were cringey . Marshall’s big “last slap” in Season 9 was cringe for the whole episode, him “retelling” the story of him talking to the “three masters”, each just being Ted, Lily, and Robin. The entirety of Season 9 was cringey, that episode is hard to watch. It took such a fun running gag… and instead it ran itself into the ground.