It must have been the Collector's Edition because it looked the same as the DVD. The scenes inside the mothership weren't there.
The movie has been revised numerous times, notably for a 132-minute "Special Edition" reissue in 1980 and again for a 137-minute "Collector's Edition" in 1988 (see List of films recut by studio for details on these alternate versions). The Special Edition features several new character development scenes, the discovery of a lost ship, the Cotopaxi, in the Gobi Desert, and a view of the inside of the mothership. The interior of the mothership is deleted from the "Collector's Edition" (Spielberg added this scene as a concession to be allowed to make the Special Edition. He decided it was a mistake and removed it in the later edition).
I don't see on HDNet's schedule that the Sunday airing of this movie is the "Special Edition." I can't see a reason why Sony would make a HD transfer of it since Spielberg isn't a fan of that version.