3. M*A*S*H*
Average viewership during the run: 18.28 million.
Ranking based on average viewership during the year: 6
Number of seasons: 11
Ranking based on number of seasons: 3
A mix between a drama and a sitcom, M*A*S*H* was universally acclaimed, culminating in the most watched finale of all time as well as over 100 Emmy Award nominations.
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