Season 1 of Teachers Only premiered on April 14, 1982.

In its first incarnation (April to June 1982), the setting was Millard Fillmore High School in Los Angeles. Diana Swanson is an English teacher, Ben Cooper is the school principal, Michael Dreyfuss and Gwen Edwards are fellow teachers, Mr. Brody is the assistant principal and Mr. Pafko is the janitor. Most of the scenes were in the faculty lunchroom and lounge from which students were excluded.

Season 2 of Teachers Only premiered on February 11, 1983.

When the show returned in February to May 1983, the school was now Woodrow Wilson High School in New York with Mr. Cooper as Principal, Diana as a Guidance Counselor and a new supporting cast. Samantha Keating and Michael Horne are teachers, Spud Le Boone is the gym teacher and Shari is the principal's secretary.