Ed and Oucho's Excellent Inventions

The Waker Upper (1x13)

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Ed and Oucho try to make the 'The Waker Upper', a contraption that wakes you up by opening curtains, turning on music and providing biscuits. It starts off well, until Ed realises they can use gravity and drops Oucho from a great height. With the Big Big Cheese on their backs, will their general uselessness and lack of science know-how stop them from building the Waker Upper in time?