New series: A Game of Thrones

There's been so much hype about this series. I hope it lives up to expectations. It's airing in the USA and the UK early in April. It's been made by HBO - who are they? I suppose it will be shown here on the pay channels only.

I came across the publicity through a Sean Bean site. He plays one of the main roles.

I then found the book by George R.R. Martin, which I enjoyed.