Seen on several LJs:
Quote from Red Dwarf.
This is one of my favourites.
Lister: D'ya think Wilma's sexy?
Cat: Wilma Flintstone?
Lister: Maybe we've been alone in deep space too long, but every time I see that body, it drives me crazy. Is it me?
Cat: Well, I think in all probability, Wilma Flintstone is the most desirable woman that ever lived.
Lister: That's good. I thought I was going strange.
Cat: She's incredible!
Lister: What d'ya think of Betty?
Cat: Betty Rubble? Well, I would go with Betty... but I'd be thinking of Wilma.
Lister: This is crazy. Why are we talking about going to bed with Wilma Flintstone?
Cat: You're right. We're nuts. This is an insane conversation.
Lister: She'll never leave Fred, and we know it.
And for anyone who's ever sat a driving test (since sallymn mentioned hers elsewhere):
Rimmer to Kryten: Right, in your own time, if you'd like to start the space vehicle, proceed through the cargo bay doors, and off into outer space. Once through the doors, proceed directly to the nearest planet. Once there I want you to bring the vehicle to a halt and then carefully reverse into the planet's orbit, remembering of course at all times to pay due care and attention to any other space users. Right, in your own time.