M*A*S*H - Wrong Name
In the episode where Margaret's father comes to visit. Hawkeye receives a box marked "Educational Materials". At first he is puzzled, then remembers that a patient had promised him at the first of the episode that he would try to send him some steaks. In the scene where Hawkeye, BJ, and Charles are all going to look at the "educational materials", Hawkeye keeps teasing BJ and Charles, and BJ finally exclaims, "Come on, BJ, what is it?" instead of "Come on, Hawkeye, what is it?"