His 80's show meant a lot to my family growing up. My dad had his 60's comedy records; mostly just him on the phone. RIP to a comedy legend. His 70's show was good as well. This one hits home. The king of deadpan.
The ending to his second show, about the Vermont B & B, where he wakes up in bed with his wife from the first show, is priceless. It's worth a watch if you knew the shows.
And then his appearances on Big Bang Theory were hysterical as well.
I read that they hid Suzanne Pleshette from the studio audience until they filmed so the studio audience would be surprised as well. There is a statue of him sitting on a couch on the pier in Chicago; where the Bob Newhart Show took place.