M.A.S.H.

William Christopher contracted an almost fatal case of hepatitis at the start of the fifth season, resulting in his having to miss several episodes. As a result, producers were planning to write Father Mulcahy out of the show. However, Alan Alda pushed to keep him on the series, knowing how dependent Christopher was on needing steady work to help raise his autistic son. Alda went as far as writing an episode to incorporate Christopher's real-life illness into Mulcahy, helping to convince producers to keep him on the show.

Throughout the series, Douglas MacArthur is referred to as though he is still in command of the UN forces in Korea. MacArthur was relieved of command by President Truman about ten months into the war: April 11, 1951 to be exact. However, the references are often due to MacArthur's influence in military strategy, and dates don't always line up in the series.

In the closing credits of the episode "Tuttle", "Captain Tuttle" is listed as playing "Himself".

Some TV networks aired the show with the laugh track turned on and some with it turned off. The final show however 'Goodbye, Farewell and Amen' was never supplied with a laugh track as it was thought inappropriate for the story-line.

Edited into Making 'M*A*S*H' (1981)