The producers of the show wanted to air a final episode that dealt with the paper going out of business. They actually interviewed reporters from real newspapers that closed in order to prepare for this episode. The show was taken off the air before that episode could be filmed.
During the primetime run of the show (1977-1982), Edward Asner became increasingly vocal on behalf of various liberal political causes. Although the series had slipped in ratings by 1982, many critics speculated that the actor's politics played a major role in the show's cancellation.
The show Room 222 (1969) takes place at the fictional Walt Whitman High School. The old building at Los Angeles High School, which was used for the exterior of Walt Whitman High, collapsed in the 1971 earthquake. The new building on that spot was used as the exterior for Whitman High in this series.
When CBS canceled the series in 1982, NBC considered picking it up, but ultimately decided against it. Grant Tinker, who was chairman of NBC at the time, later commented that the reason the network passed on the show was because they judged it as "a little tired".