The Jack Benny Program

The Smothers Brothers confound every attempt by Jack to force them into his straitjacket comedy formula while performing his theme song, but, even scarier to Jack, he is pinned under an unexploded bomb in a World War II London air raid. The UXB squad turns out to be the Smothers. Tom can't remember which wire to pull, while Dick uses the opportunity of Jack's being immobilized to lock in an appearance on Jack's final program.