Continuity mistake: When Raymond brings the doctor his milk and pill, the tray with the milk and pill are already on the bedside table.
Edith's Final Respects - S9-E5
Continuity mistake: In this episode Jean Stapleton plays two characters. As Edith Bunker her earrings change from gold that curve below her lobes to white round ones later in the show.
Six Strangers at Apache Springs - S2-E7
Continuity mistake: Heyes' horse is shot out from under him by the Chiracahua, forcing him to leave it behind and ride double with Curry. But when they return to Apache Springs, Heyes is again riding the same horse that was shot earlier. (00:40:40 - 00:43:30)
Is Lupin Burning... ?! - S1-E1
Continuity mistake: Fujiko is bound to the torture rack in a different way (look at the way her arms bend) in the various shots. (00:03:35)