"Christmas Party" is the fifth and final Christmas episode of The Jack Benny Program.
To prove he's not a cheapskate, Jack throws a Christmas party for his cast and crew, and even hands out surprise gifts. Frank Nelson, suspicious of Jack's sudden generosity, uncovers the secret behind it.
In the finale, Jack welcomes Mel Blanc, making his first appearance since his near-fatal car accident the previous January. He exchanges a few quips with Jack and does some of the voices he's performed on the show, including Sy and Professor LeBlanc.