When Judge Stone is flipping down the hall out of excitement, you can tell it's his stunt double as his face appears on camera after the cartwheel. It appears his bow tie is missing too.
Marion Ross guest stars as a woman who watches a lot of TV, but believes the characters are real people. In one scene she references the following show by naming people/characters: Oprah, Donahue, The Tonight Show with Johnny Carson, The Cosby Show, Dynasty, M.A.S.H., Dallas, Leave it to Beaver. The last character she names is "The Fonz", from Happy Days, which Ross also starred in as Mrs. Cunningham.