Here's the entire episode of The Tonight Show Starring Johnny Carson, minus commercials, for 11/12/1976. The guests are Frank Sinatra, David Janssen, Olivia Newton-John, ex-con Ray Johnson and there's a "surprise walk-on" by Don Rickles. There were very few actual surprise walk-ons on Johnny's show and he was reportedly pissed about every one of them.
Two quick thoughts: Rickles fawning over Sinatra reminds me a lot of certain Republicans talking about Donald Trump. And it's interesting to me that when you remove the commercials from this 90-minute show, it runs about 64 minutes…