In 2006:
http://www.pocket-lint.com/news/77641-sky-hd-tv-star-wars
There was also another date they supposedly aired the "original trilogy in HD" on another channel when I was browsing the internet. But I can't find that information right now. Probably it was SciFi channel or something.
I absolutely don't get that bit:
"Sky is quick to point out that it is the only broadcaster to show the whole saga in HD, as LucasFilm has not permitted the original three films to be shown in HD."
Seems contradict.
But if they are able to broadcast original films in HD, as they did when it still was a fresh technology and they would often look surprisingly well because there is simply a lot more picture information that was lost in SD broadcast.
And why don't they do it with Star Wars? Why didn't they?
Was Lucas really supervising to not let this happen at all cost?
Like pulling back all original copies of original Star Wars from every tv station and then send back a special edition copy?
It really sounds worse than the French inquisition