Showing that on TV would be a mistake from my point of view. Show Elvis in his prime to the world outside his fans.
Release the CBS special plus outtakes as a DVD with remastered sound and image ONLY for the fans via FTD, definetively. Its about time to release is it. (Anyway I don't see FTD working with video anytime soon, and next year would be busy for Sony with the Elvis on Tour and the MSG gigs aniversary, well, hopefuly)