M*A*S*H season 1 episode 18
Episode title: Dear Dad...Again
Once again, Hawkeye writes home to his father, telling him of the latest gossip: the camp gets a new surgeon, who turns out to be a fake; Hawkeye bets he can walk into the mess tent naked for lunch, and no one will notice; Radar cheats on his final exam from the High School diploma company; Margaret rejects Franks advances and he gets drunk late into the night; the camp have a no talent night.