I just called Hitachi tech support to enquire about the whole 720p/50 debate and whether the xxPD5x00 models will be compatible. Hitachi say yes. They say the Sky HDTV box will output *BOTH* 720p and 1080i, allowing the viewer to choose their format. They say it will not be a case of some stuff being in 720p and some in 1080i - everything will be available in both. Although the xxPD5x00 won't cope with 720p/50, they will cope with 1080i, so we just won't be able to get a progscan signal. Of course, we won't know for sure until Sky release more info, but fingers crossed Hitachi are right.