I was under the impression that none of the StarWars films were out in HD as yet, owing to conflict with the Lucas studio over the quality that could be achieved on disc, even BluRay release has not been approved (unless it's happened in the past couple of weeks).
_http://www.,
amazon.com/Plans-For-Star-Wars-Blu-ray/forum/Fx3QO7QZ9OCL4IT/Tx5JZBNKYJYC2Q/1/ref=cm_cd_dp_tft_tp?%5Fencoding=UTF8&asin=B000PMLF RA&store=dvd
So if it is shown on ITV HD, then those with a new-fangled Panasonic BluRay recorder may have the only copies in existence.
But hey, I'm still using a Bush IDTV so what do I know.