Re: oh Great!
The most popular shows are US based anyway...
Citation needed!
While it's true that I enjoy a bit of junk-SF as much as the next geek, I would not say that the shows that provide it are the best, by any stretch of the imagination.
Some of the documentaries on BBC4 are world-class. Interesting and informative (without being too high-brow for the people watching on smartphones on the Clapham omnibus), and intelligently and well presented. The licence fee is a bargain for those alone.