Missed opportunities

[tigerfort]

I haven't actually checked by rewatching it all, but I'm pretty sure that Red Dwarf never did the terribly obvious "Open the pod bay doors, Hol" "I can't do that Dave" joke.

I'm also surprised not to have seen any jokes about a book featuring dodgy dungeons and unusual fantasies called "Fifty Shades of Grue". Although I admit I can't think of a good one off-hand.