Alan Alda reflected on the 50th anniversary of his beloved TV series, "M*A*S*H," discussing its enduring legacy and the real-life friendships of him and his former castmates. The comedy-drama series, which followed a team of American doctors and support staff stationed in South Korea during the Korean War, still holds the record for the most watched finale in television history. "I'm not sure we ever knew what kind of impact it was having," Alda, who starred as Capt. Benjamin Franklin "Hawkeye" Pierce, told PEOPLE . "It took a while to catch on, lingering near the bottom of the ratings for the first season, We got used to coming to work, doing the best shows we could and not worrying about the numbers. By the time that huge audience watched the last episode, we were kind of shocked." When asked what went through his mind when someone asks him about the show, Alda simply responded, "Gratitude that what we did all those years ago is ...