Yesterday I talked a lot about the Chuck finale and in looking around the internet, I've seen a great many fans opine that there were early finales that they'd prefer to think of as the end of the show. It seems to me that's a great point of discussion. If you could have ended some of your favorite shows at an earlier point, what earlier episodes would you have chosen as the finale?
Some ground rules: you can't rewrite history. That is to say, you can't say, "I'd end Cheers in season 8, but I'd bring Diane back for the finale." You can stop the show at any point - it doesn't have to be at the end of a particular season, but you can't invent a new episode or plot twist for the finale. And when you set the end point, you have to be able to defend why that particular ending works for you.
As an example, I probably would have ended The Simpsons with its 11th season finale, "Behind the Laughter." That episode is told in the style of VH1's "Behind the Music" and is something of a retrospective of the series, adopting the conceit that Homer and his family are actors who have been playing themselves as characters in the long-running series. The next season is where The Simpsons really began its decline, and "Behind the Laughter" would have been a fitting swan song.
But that's just one example. What are your picks?