Visible crew/equipment: While pulling back from Vila's conversation with the gaming computer, the camera apparently runs over a cable. There's a visible jump in the picture and an audible clanking noise.
Continuity mistake: Orac is in two places at once: he's sitting on the console, plainly visible in front of Dayna as she calls the landing party - but in the next shot of the crew over on the orbiter, Vila is holding Orac.
It's not every day you can shoot your wife in front of millions of witnesses and get away with it. Klyn, the woman behind the console who sounds the alarm before Avon shoots her, was played by Paul Darrow's real-life wife, Janet Lees Price.