When Dr Felger (Patrick McKenna) is preparing to go off world, he packs a large roll of duct tape in his back pack. This is a reference to McKenna's character, Harold Green, in The Red Green Show (1991). It may also be a sly reference to MacGyver (1985): Angus MacGyver (played by Richard Dean Anderson) always carried a squashed-up roll of duct tape in his pocket.