SRS, there are lots of excellent Sci-Fi or related UK TV shows. Some of my faves are Hitchhiker's Guide to the Galaxy, Dr Who (watched it when it first aired in Oz back in the '60's from the first series with William Hartnell, and it was the reason my student share-house friends and I decided to rent a TV in the '70's), any of the Terry Pratchett shows (series or one-offs), Red Dwarf (of course), Life on Mars (looks ordinary/everyday but with a twist), Black Mirror, Catweazle (v. funny! I still make jokes about electrickery and the telebone) etc etc.

We have the DVD's of all of those, except Life on Mars I think - although Hubby might have bought it.

And lots more sci-fi, fantasy and other quirky shows from UK, Oz, US etc.