In 1986, he began appearing in ITV's popular Saturday morning children's series, No. 73. But shortly afterwards, he switched to the BBC to launch another Saturday morning children's series, On the Waterfront, alongside fellow ex-No. 73 host Kate Copstick. In 1991, O'Connor became the second actor to play The Head in CITV's arts and crafts show Art Attack presented by Neil Buchanan.
