Wallace & Gromit's Cracking Contraptions

The Tellyscope (1x2)

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It has always been Gromit's job to walk over and switch the TV channels on Wallace's aging set. Wallace decides to save his legs by inventing a simple remote control device. Unfortunately, though the machine provides fingertip control, it is hardly instant. When Wallace turns on the TV and is confronted by a hard-hitting penguin documentary, he needs to change channel fast. That's when Wallace realises the flaw in his design...