We learn that Muck is afraid of the dark.
Dizzy never took her football out of the yard and to the building site, How did she get it when she traveled with the others?
First time Wendy wears Bob's Hard hat instead of her blue Hard hat.
Bob uses brass pipes and a funnel to create his trumpet.
How can a tire hold cement without it ruining the yard?
How can Spud fly with a heavy piece of Sheet Metal on his back?
When lofty was going back to the yard because of Spud hurting his feelings, he has his grabber attached, but when he pulls into the yard he has his hook
Bob dresses up as Santa Claus, Muck as a Sleigh and Dizzy as Rudolph the Red-nosed Reindeer.
How can Bob not notice that the can of Cat food was upside-down?
Earlier in the episode Lofty has his grabber but later in the episode when Wendy sent Muck and Lofty to Farmer Pickles Lofty has his hook but when Muck and Lofty are leaving Lofty has his grabber again
Mrs. Potts does a Riverdance while Bob works in her attic.
We find out that Mr. Bentley has love trains since he was a kid.
Lenny Lazenby was playing the music while Mr. Beasley plays the Maracas.
Bob and Wendy
Mrs. Percival and Mr. Sabatini
Mr. Dixon and Jenny (Wendy's Sister)
Spud (Dances alone)
Wendy wears a Light Blue Ballroom Dress.
Bob asks Robert to stop calling him "Bobby" because it bothered him. But in Dot's and Robert's later appearances, Robert continues to call his son "Bobby", and that doesn't bother him at all.