Blake’s 7 Season 4 Episode 11
The scientist Egrorian offers Avon a powerful weapon, the Tachyon Funnel, in exchange for Orac. Servalan, who is behind the transfer, prepares a plan to double-cross Avon that would give her both the Tachyon Funnel and Orac.
Serie: Blake's 7
Episode Title: Orbit
Air Date: 1981-12-07