M*A*S*H: The Series: 1x03 - Requiem for a Lightweight

This episode marks the first appearance of William Christopher as Father Mulcahy and the first lines said by the character, as George Morgan didn't have a speaking part in the pilot. I'll admit to being horribly biased but I really am glad they recast this part. We also get the first mention of the Padre's interest in boxing.