There was an interesting triad of Jack Benny, Jack Paar, and Ed Sullivan. Ed Sullivan helped Jack Benny get started in radio, and in turn Jack Benny helped Jack Paar get his start. When Jack Paar went on to television, he had a real life fued with Ed Sullivan. Not a fake fued like the Benny Allen Fued. On a guest appearance on the Jack Paar Tonight Show, Jack Benny tried to act as a peacemaker by saying that If Ed hadn't given him a break and he hadn't given Paar a break, then Paar would not be where he was today. In other words without Sullivan there would be no Paar.
I think the fued may have had to deal with the fact that Ed Sullivan's show played to the lowest common denominator with chimps and plate jugglers, while the Paar Show played way up to and past the audience, with Castro, Jack Kennedy, and Bobby Kennedy interviews. Does anyone know more about this? Are any of these interviews still around in any format?