MASH, a sitcom that barely anyone watched initially, became an iconic show that broke its own genre. It held the record for the most-watched TV episode finale for over 40 years, highlighting its popularity and the era before the internet and streaming. Despite poor ratings in its first season, MASH was saved by reruns and evolved into a blend of comedy and drama, becoming appointment television. Its evolution from a sitcom to a dramedy was natural, with the third season's shocking finale marking a significant turning point. The show's willingness to tackle complex moral issues and explore the harsh realities of warfare made it a groundbreaking series that influenced many others.