Ed and Oucho's Excellent Inventions - Series 1 - Treat Run

Factual programme. Ed and Oucho travel the country making inventions. They try to build the Treat Run, a treadmill that powers music, a water spray, a chocolate drawer and a confetti bomb. Things go well until Ed and Oucho bring out their gear-testing custard machine. With the Big Big Cheese on their backs, will their general uselessness and lack of science knowhow stop them from building the machine in time?