The Father Christmas Affair (S04E07)

Title: The Father Christmas Affair Plot: After discovering that the robotic Santa isn't dependable, Mr. Grace decides to incentivize one of his employees with a bonus to take on the role of the store's Santa. Meanwhile, Mr. Humphries and Mr. Lucas lend a hand to Mr. Grainger as he gets ready for a performance at a local retirement home, filled with singing and dancing.