Just before and after commercial breaks, Svengoolie presents sketches, tells corny jokes, and performs song parody spoofs of the film being aired. Some shows were presented in what was later dubbed "Sven-surround" – a pun on "Sensurround", a brand name theater audio system – in which Svengoolie would joke as the film aired sometimes with humorous sound effects. (The creators of "Mystery Science Theater 3000" cited Svensurround as an inspiration.) This stunt was discontinued for a short time, then brought back due to viewer request, although as a clip segment aired outside the film.