In one scene, Robert Colbert address the Tim O'Hara character as Bill ( The actors real name).
Visible wires: Attached to the dinner plate that Martin levitates while in the kitchen.
Visible wires: Attached to the fourth and fifth theatre tickets levitated by Martin.
Robert Colbert's character Bill Fisher addresses Bill Bixby by the actor's first name rather than his character name, when he asks the character Tim O'Hara, "What can I do for you, Bill?".
Tim introduces his "uncle" to Bill Fisher as "Martin O'Hara". However, Bill addresses him as Mr. Martin rather than as Mr. O'Hara.