Friends: The Worst Episode From Every Season
7. Season Four: The One With The Invitation
Friends actually did quite a few clip shows during its run, and none of them are good. In fact, they're all pretty terrible, and this trend of creating pointless filler episodes out of the most boring of developments started in season four's The One With The Invitation.
The set-up is that Ross has sent invitations out for his and Emily's wedding, but is conflicted about inviting Rachel. This causes him to have flashbacks throughout their most defining moments. On the other side of the episode, Rachel wonders whether she should go to the wedding, and has her own trip down memory lane.
That's it, in a nutshell - just half an hour of flashbacks to old episodes, bookended by Ross and Rachel looking all wistful and unsure. It's so dull, pointless, and lacking in any kind of forward progression that it's actually quite difficult to write about. It's barely an episode, and does literally nothing to justify its existence. Moving on.