I meant HBO! I think GoT season 1 is the only season that's had a release at that res so far.
I was really hoping to get an HDR version of the "The long night", to address some of the banding and other visibility problems present in the episode, and maybe see a bit more of what went on. But there isn't one yet. So I watched it with the lights out so that my eyes adjusted :)
But yeah, you're probably right, NowTv has massive potential to undercut their main offering.