Wallace and Gromit/Heartwarming

A Grand Day Out

 * The robot finally able to go skiing, and waving to Wallace and Gromit.

The Wrong Trousers

 * After spending most of the short being ignored, Gromit fetches Wallace's slippers to which his master replies: "Thank you old friend, many thanks indeed."

A Close Shave

 * The ending; "I couldn't pass by without saying thank you."