I only started watching How I Met Your Mother on CBS this past season (its fourth) but thanks to repeats I was able to see an episode from the third season titled “The Bracket” in which there is a hilarious M*A*S*H reference. During a flashback scene Barney (Neil Patrick Harris) is trying to remember the name of the actor who played Hawkeye on M*A*S*H. Lily (Alyson Hannigan) suggests Alan Alda. Barney says no and heads for the bar. When he returns, he says it was Alan Alda.
Barney: “Alan Alda. It was Alan Alda.” [Two minutes earlier] Barney: “Who was that guy from M*A*S*H. The main guy. What… Hawkeye from MASH. How can I be blanking on this?” Lily: “Alan Alda?” Barney: “No.”
I’ve updated M*A*S*H References on Television with this latest reference.