One of the most popular television shows of all time, Mash, was also progressive for its time, tackling themes other shows wouldn’t dare even tip-toe around. The beloved CBS series based on real-life events during the Korean War ran for a legendary 11 seasons, winning multiple awards and catapulting the careers of stars like Alan Alda. The show developed a cult-like following over time—fans simply couldn’t get enough of characters like Corporal Maxwell Klinger and Captain Hawkeye Pierce. But that doesn’t mean the show was without its own dramas and quirks—especially behind the scenes. Read on to learn about the secrets behind the filming of Mash.