 In 1983, Henbest conceived a TV documentary on the pioneering Infrared Astronomical Satellite, which was filmed by Quanta production company and screened in the BBC television Horizon strand.Henbest was consultant on the television series "The Planets" and "The Stars", presented by Heather Couper in 1985 and 1988 on Channel 4.With Couper and the director of "The Stars" series, Stuart Carter, Henbest set up Pioneer Productions later in 1988.