Big John, Little John was an American Saturday-morning situation comedy, produced by Sherwood Schwartz, which starred Herbert Edelman as "Big John" and Robert "Robbie" Rist as "Little John." The show first aired on September 11, 1976 on NBC, and ran for one season of 13 episodes. The series was produced by Redwood Productions in association with D'Angelo-Bullock-Allen Productions.
Big John, Little John (Season 1)

A Sizeable Problem (Episode 1)
Writer: Lloyd J. Schwartz
Air date: 1976-09-11
Runtime: 30 min
Overview: While on a trip to Florida, John Martin stumbles upon the legendary fountain of youth and sips a handful of the liquid. The consequences are unforeseeable, for he begins to revert to his childhood at certain times that are neither predictable nor controllable.

Peter Panic (Episode 2)
Writer: Philip John Taylor
Air date: 1976-09-18
Runtime: 30 min
Overview: Big John is cast as Captain Hook in his school's production of Peter Pan, while Little John ends up having to play Peter Pan at the same time.

Very Little John (Episode 3)
Writer: Bruce Kalish
Air date: 1976-09-25
Runtime: 30 min
Overview: John tries a new formula in the laboratory that he hopes will cure him from his conversions.

The Great Escape (Episode 4)
Writer: Bill Freedman
Air date: 1976-10-02
Runtime: 30 min
Overview: John Martin is detained when a sheriff demands his ID and he cannot produce it. He gets his freedom when his personality changes in prison.

Big Scare, Little Scare (Episode 5)
Writer: Ron Friedman
Air date: 1976-10-09
Runtime: 30 min
Overview: John has summoned Mr. Boswell, Stanley’s dad, to account for his son’s continuous tardiness to class for five days.

Big Shot, Little Shot (Episode 6)
Writer: Alan Dinehart
Air date: 1976-10-16
Runtime: 30 min
Overview: Everyone braces for flu shots in the midst of a flu epidemic.

Time for Change (Episode 7)
Writer: Lloyd J. Schwartz
Air date: 1976-10-23
Runtime: 30 min
Overview: John believes he has discovered the secret of the Fountain of Youth, so he calls a press conference to announce his discovery.

The Principal Who Came to Dinner (Episode 8)
Writer: Mark Fink
Air date: 1976-10-30
Runtime: 30 min
Overview: Big John's voice in Little John's body and vice versa puts not only Martin in a squeeze but his family as well.

Bully for You (Episode 9)
Writer: Sam Locke
Air date: 1976-11-06
Runtime: 30 min
Overview: Stanley is again late for the class. The teacher is speaking to his students about the importance of facing up bullies. This leads to trouble for Little John when he's threatened by the class bully, Gasey.

Off the Wall (Episode 10)
Writer: Ben Gershman
Air date: 1976-11-13
Runtime: 30 min
Overview: John is assigned to find who is behind the vandalism inflicted on the school walls.

The Missing John (Episode 11)
Writer: Bruce Howard
Air date: 1976-11-20
Runtime: 30 min
Overview: Little John receives a severe reprimand for having played unwillingly a joke on the school principal.

Speak for Yourself, John (Episode 12)
Writer: David P. Harmon
Air date: 1976-11-27
Runtime: 30 min
Overview: The school prepares for their annual Thanksgiving dance, "Plymouth Rock".

Abracadabra (Episode 13)
Writer: Lloyd J. Schwartz
Air date: 1976-12-04
Runtime: 30 min
Overview: Homer wants to quit school and become a magician after believing he made Little John change into Big John.

Seasons

Episodes 13