Corrected entry: When Rimmer (in Lister's body) is scoffing food under his sheets, Lister (as Rimmer) wakes up and leaps off the top bunk and he makes a thud as he hits the floor, now seeing Lister is a hologram in this scene he shouldn't have made a noise on impact with the floor.
Correction: As he is a hologram, he shouldn't be able to lay in abed without falling through, use the lifts, or get any traction on the floor when walking. If you can accept that he can also see and hear despite being made of light, you should be able to accept that Holly has programed the light-bee to emit fotstep sounds when he walks/lands to make him appear more human.
Correction: It is not a boom mic. In the wide shot of the room you can see there is part of the damaged ceiling hanging down and swaying, causing the shadow.
Dwarf