Bitz and Bob - Season 1 Episode 11 -

Roll up, roll up! It's circus time on Faraway Island, and everyone can't wait to show off their amazing acts. Bob is the great Robo-Bobino, the world's first robot tightrope walker, except he has never tried tightrope walking before, so while Bevel puts him through his paces, Bitz and Purl need to think of a way to make his brilliant act brilliantly safe.