Hi all! Just wanted to warn U.S. fans that this blu-ray will NOT play on U.S. blu-ray players, even though it says Region Free. I tried 3 different blu-ray players, including a PS3, and it would not play. I did make sure that their firmware was up to date...oh well...it's a lot more expensive if you buy the region A blu-ray :(
1080i50 is the resolution it was filmed and broadcast at, and being a UK show it's PAL, whereas the US is NTSC. Regular 1080p region free Blu-rays will work fine, but the only way to get round it this is to buy the US Blu-ray.
It is worth pointing out that only Amazon say it's region free; the BBC and 2 entertain never put the region logos on their releases for the very reason that they're 1080i50.
The issue is that the video is shot and presented in 1080i50 format which not all American equipment can accommodate. The solution is to use a BD player with more complete codec support. (PAL & NTSC are irrelevant standard definition formats).
@Martin, thanks for the info about 1080i50. That means I can rip it to a PC, and then watch it there.
@Brain, Since the Blu-ray disc itself is region free, your computer's Blu-ray drive can read it, and most software player has the coded to decode both 50 fps, 60 fps TV, and 24 fps film. You should be fine.