Secretary 17 is the one who smokes. She's terminated because Murphy quit smoking and can't have another smoker around her.
Miles plans to take Jim to a comedy club. Jim asks whether it's "...the one who smashes watermelons with a sledge hammer?", which is a reference to the comedian Gallagher, who does this during his "Sledge-O-Matic" routine.
The song the band plays as Murphy and Victor enter the ballroom is "Ease on down the Road" from The Wiz (1978).
Opening song is a remake of "He's a Rebel" by the Crystals.