The new BSG series is filmed by the Sci-fi channel in conjuction with NBC(who owns the rights the original series). I'll try and look up the exacts, +++google
Alrighty, I pulled it up on Wikipedia and it states that NBC Universal, Sci-Fi, and Sky One all jointly fund the show, and Sci-Fi is the primary producer. The funding by Sky One is the reason it was first aired in UK and it appears from now on the seasons will air in the US and Canada before the UK.