I doubt many folks here know who
The Smothers Brothers are, but they apparently decided to retire recently. My wife and I saw them about 8 years ago, and they were awesome. They have/had a timeless comedy that didn't seem old or stale at all, even after (at the time) 40+ years in the business.
I'm glad we got to see them live.
I'm gonna have to see if their TV show is available on DVD...
There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors