Amazon Prime has TNG in HD and it looks great. But they are the only ones in the US as far as I can tell....
iTunes US doesn't have the HD versions? iTunes Canada has them.
Also, it's amazing how people keep saying that people who "worked" on the project have said the sets did terrible, when, I've tried finding quotes from these people, and the only quote I've been able to find has been from 1 producer, who was only on contract to CBS to produce the special features. He was not an internal producer at CBS, but an outside contractor, so how does he know whether the information he has been given in regards to sales, is accurate, and not just something the execs at CBS have told their people to tell him, because the CBS execs were not happy with something he did on the special features and they do not plan to bring him back for future projects, but instead of telling him that, they are just saying "Oh...the sets didn't sell well."
On the other hand, the evidence that is available suggests differently from this producer's claim, and that there is interest and potential profit for CBS in converting DS9 to HD. On June 5, one thing I didn't mention, but noticed was that, here in Canada, in comparison, the only entry for Babylon 5 was Crusade was at #90 on the list; otherwise B5 was nowhere in the Top 100 for Science Fiction shows in Canada.
I remain cautiously optimistic that DS9 will see an HD upgrade. With TVs now moving into Ultra HD and computer screens now in HD, DS9 will be a much more viable commodity for CBS (whether streamed or on physical media) in HD.