Complex sentence: He hosted "After Dark" in 1988, a programme he had also once appeared on discussing the Irish civil rights struggle, as well as appearing as himself in an episode of dinnerladies in 1999.
Split into simpler sentences: He hosted "After Dark" in 1988, a programme he had also once appeared on discussing the Irish civil rights struggle. In 1999 he appeared as himself in an episode of dinnerladies in 1999.