Angela, we've got Virgin cable, and they've recently been including Sky 3 in the package. I've only seen a couple of the 'Royal' programmes, but they really are good. They treat the research seriously, but appeal to a wider audience by giving some suspense as to whether the family do have royal connections or not.
My cable channel also showed an old WDYTYA tonight - the Alastair McGowan one - from a couple of series ago. It was by no means the best programme but it brought home what everyone has been saying about this series. Alistair McGowan was genuinely surprised at each generation they uncovered in India, and the researchers followed his family back until they found the original British (or actually Irish) ancestor that first went to India. That was real research - which we haven't seen much of at all in this series.
Mind you, I did enjoy Zoe Wanamaker - so I'm hoping the next programme is back to the old format.