Harry Morgan played Colonel Sherman T. Potter on the popular M*A*S*H series while David Ogden Stiers played Major Charles Emmerson Winchester III. The characters didn’t get along but by the time the Korean War was over they were still somehow friends. Their interactions led to some fun moments in the show.
However, there was another show where they teamed up, at least in a cameo that never aired during the show’s original run as it was cut short. MeTV discusses the show Love & Money, where Stiers played the father of one of the main characters, and the unaired cameo that was also Harry Morgan’s final TV appearance. Luckily the episode did air on Canadian TV and someone uploaded the series to YouTube, including the unaired episodes. So at least this important moment is available to be seen.