I Am the Eggbot

S3 E6: A strange little egg-shaped creature lands on the planet - an Eggbot. It sings a high note 'Doh'. It proceeds to explore and gets stuck in a cave deep underground, where it is heard by the sleeping Clangers. They are amazed when they hear another note, a low 'Doh' and find a giant Eggbot come to rescue the little 'Doh', with the help of six other singing Eggbots - Ray-Me-Fah-Soh-Lah and Te!