I still think the broadcast finale episode of Newhart was one of the best and funniest finales ever.
I watched The Bob Newhart Show but never watched Newhart — until that finale.
IIRC, when they released the Newhard DVD, they edited out significant parts of that finale episode, thus ruining the comedic value the broadcast episode had.
Yeah, I only watched Newhart in syndication for some reason, and wound up missing the finale because I gradually lost interest in the show — but I found the entire final episode (as well as some highlights) on YouTube onetime. Having Suzanne Pleschette come back for that was perfect.