M*A*S*H
Comedy drama TV series from 1972 to 1983.
M*A*S*H broke new ground for future shows and became one of the first sitcoms to challenge the laugh track. Considering the setting, show runners Larry Gelbart and Gene Reynolds didn't want a laugh track at all, considering it inappropriate. Since comedies of the era almost always came with one, they were overruled by CBS.
That said, CBS agreed to drop the track over all operation room scenes. The laugh track used in M*A*S*H was also more subdued and became quieter in later seasons. More dramatic episodes like season 4 finale "The Interview" dropped it entirely, and by the final season, nearly every episode was laugh track free.
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