In the season four episode titled “The Old Man” the episode ends with the two eighty-year-olds having an extended talk in the coffee shop. Multiple cameras are used and both the shooting style and content of the conversation mirrors that of the normal cast. Apart from the series finale, is this the only instance of a complete scene of this sort being shot with no main cast member in it?
Also, I’ve been watching Seinfeld episodes in order lately, and I never realized how much continuity there was. There’s lots of mini-arcs that carry over multiple episodes. I’d only ever seen the show in sporadic syndication, and while I was never lost, it’s like I’ve gained a whole new appreciation.
Lastly, having only watched them on TV, I discovered that I had almost always missed the post credits scenes. Sometimes these are just Seinfeld’s stand-up, but they also often resolve loose ends. I must have gotten in the habit of channel surfing and not sitting through a final two minutes of commercials to see another 20 seconds of show.