 Flintlock played cover versions of a variety of songs in both series.He appeared in a two-part episode of the children's science fiction programme "The Tomorrow People", "The Heart of Sogguth" in 1977, in which the band's music was used to revive an ancient demon.In 2007, he was noted for his performance at the Tyndall Assembly, a concert series directed by Tristan Louth-Robins in Adelaide, in which he collaborated with experimental composer Luke Harrald.