MTV's VIVA channel are currently screening a season of the TOS films, beginning with TWOK and I was hoping they might have the extended TV versions of TWOK and TMP. No such luck, tonight's broadcast of TWOK was the theatrical release.
I'm betting that Paramount does have the video masters because in the past decade, the Special Longer Version of TMP was shown on BBC Three - and in widescreen, albeit cropped to 16:9.