So is 'Back to Earth' any good? It's the only Red Dwarf I haven't seen, and I was just curious if it was worth the 20 bucks Amazon is asking for it.
It's hit and miss. The story has some great homages to a certain famous SF film (I won't spoil), and we also get to see a pre-Two and a Half Men Sophie Winkleman in a key role. It also gets really meta for a good chunk of it.
If you are familiar with the series, it's a hoot (I'm trying not to spoil here) though the lack of a live audience is a detriment. But it's not a place to come in on the ground floor - get one or more of the other seasons first.
It does have the added benefit of being the only Red Dwarf "season" available on Blu-ray (you won't see the others done that way because they're all videotaped except for the shot-on-film Series VII).