The opening sequence from MASH. It's hard to tell which season this is from, but it had to be one of the first three because Wayne Rogers and McLean Stevenson are listed as cast members. MASH was truly a groundbreaking show. It could not be easily defined as comedy or drama, but it was often compelling. It garnered 99 Emmy nominations in its 11-year run. The final episode remains the highest-rated show in American TV history.