O.T.T. was a late-night adult version of the anarchic ATV children's show Tiswas, but made by its ITV franchise successor Central Independent Television. It was broadcast at 11.00pm on Saturday nights for one series in 1982. It was created and presented by Chris Tarrant, and also starred ex-Tiswasians John Gorman, Lenny Henry and Bob Carolgees. Helen Atkinson-Wood was the female sidekick replacement for Sally James, who stayed behind to present the concurrent and final series of Tiswas alone.