The original broadcast of Episode #9.20, "The Life You Save", was delayed by several weeks. It featured a subplot about Maj. Winchester becoming obsessed with death after almost being shot. It was scheduled to air on the same day that U.S. President Ronald Reagan was wounded in an assassination attempt. The network felt the audience was not in the mood to see the episode at that time.
This is the first time it's found out Charles had a sibling other than his sister, and is never mentioned again in the series. In fact, no one at the 4077th even knows that Charles had a younger brother who died. He only told this story to the wounded soldier.
According to John Rappaport, the soldier's dying line of "I smell bread" has no significant hidden meaning and was put in as a joke purely to baffle the audience. However, this hasn't stopped generations of fans from trying to interpret or come up with their own theories of exactly what the young man meant.
The title comes from safety posters - "The life you save could be your own."
The first, and only, time that the officers assume special duties - morale officer, mess officer, etc. - on a monthly basis. Otherwise, they would know what is expected of them in each position, as well as the problems they would run into.