When Kryton wakes the crew when they are trapped by the sandstorm, Lister gargles with a small amount of drink from a can. However, previously the crew were out of food and drinks.
(Around 33 minutes) Rimmer starts walking with one extension lead in his hand but in the next shot he's holding 2 leads.
Kryton says that Anubis was a cat headed god, but he had the head of a Jackal. Bastet is the god with the head of a Cat.
When Rimmer puts Kryten on report he writes his name down as Kryten 2X4B. 2X4B is Krytens middle name. His surname is 523P.
While Starbug is buried in sand Kryten drills a hole in the roof wide enough to allow his spare eyeball to protrude. The hole must be at least 3 cm in diameter. Minutes later Starbug is blasted into space by a nuclear explosion, and nobody does anything about the hole Kryten drilled in the roof. The air in the Starbug is going to vent into the vacuum of space within seconds.
When Lister asks why no one can criticise him, Rimmer stands up. Before Rimmer delivers his line, you can see Craig Charles trying not to laugh.