As Time Goes By (M*A*S*H) As Time Goes By (M*A*S*H) "As Time Goes By" is the 255th episode of "M*A*S*H", airing on February 21 (first-run) and September 12 (repeat), 1983, and the last episode filmed. As it was the final episode filmed they took a moment to pay tribute to the characters (except for Trapper John McIntyre) who had left the series before its conclusion. It also introduces the character of Soon-Lee, who would play a vital role in the series' final episode and the short-lived spin-off "AfterMASH". The episode is dedicated to Connie Izay, RN, one of the show's medical advisors. Although this was
M*A*S*H (TV series) was at risk of being cancelled. In season two, "M*A*S*H" was placed in a better time slot by CBS (airing after the popular "All in the Family"); the show then became one of the top 10 programs of the year and stayed in the top 20 programs for the rest of its run. It is still broadcast in syndication on various television stations. The series, which depicted events occurring during a three-year war, spanned 256 episodes and lasted 11 seasons. The Korean War lasted 1,128 days, meaning each episode of the series would have averaged almost four and a half