Dan Rowan had a cane because of recent surgery on his hip. He kept it just out of sight while standing, but during the party segments, he sat on a stool with the cane in front of him.
Released on DVD on the Best of Rowan & Martin's Laugh-In disc 2.
In a doctor sketch, Jack Benny answers the phone as "Dr. Kubelsky." Benny's real name is Ben Kubelsky.