From this episode to the final of season three, Steve Bisley is listed in the opening credits, rather than as a guest star (despite not appearing in this episode).
Frank: If we prove that those drums at the bottom of the harbour are yours, you'll be getting a call from Captain Planet!
Gavin: Where’s Frank?
Helen: Ah it's good to see you too, Gavin.
(Gavin is video recording a triathlon event)
Tommy: Gavin, Gavin, Gavin. Been demoted to making home movies?