"Sportacus Who?" is an episode in the first season of LazyTown.
"Robbie Rotten invents a device that makes Sportacus lose his memory. He tells Sportacus that he is no hero and that he never saves anyone. But when Robbie Rotten gets into danger he begs Sportacus to help him. When Sportacus's crystal beeps, his memory returns and he comes back to save the day."