Basic Trope: A moment (or moments) that trigger warm, pleasant and gratifying feelings. It may induce Tears of Joy, too.
Straight: In Albert: Champion of justice, Albert has just beat the villain of the week and is walking back to his hideout when he is stopped by a little girl, handed a flower, and she says "You worked so hard to save me today. I'm sorry I don't have anything else."
Exaggerated: The entire show is about puppies and kittens playing with toddlers.
Downplayed: Something small and heartwarming occurs.