From Wikipedia: Reggie is an American sitcom that aired on ABC from August 4 until September 1, 1983; it was based on the British sitcom The Fall and Rise of Reginald Perrin.

CAST:
• Richard Mulligan as Reggie Potter
• Barbara Barrie as Elizabeth Potter
• Timothy Busfield as Mark Potter
• Dianne Kay as Linda Potter Lockett
• Timothy Stack as Tom Lockett
• Chip Zien as C.J. Wilcox
• Jean Smart as Joan Reynolds

This old 8mm behind the scenes look was filmed by the production assistant, Tim Amyx, in the backyard of the producer, in the San Fernando Valley, and were “Fantasies” that were edited into the show at a later date. Filmed in the summer of l1983. John Bowab was directing these “Fantasy” sequences.