In '08 series episode "George Lays An Egg", George cares for an egg that he mistakenly thinks is his. Made more heartwarming by the egg hatching to reveal a baby Tooky Tooky.
From the first movie, the scene in which George and Ursula are dancing around the fire to "Dela". Especially when you factor that Ursula was reluctant to do so based off of Western social anxieties until George points out that he's the only person around and he wants to see her dance. You can tell the two actors had fun doing this scene.