No, No sign of it, though it seems from the 'Reviews' that Amazon are still taking pre-orders, with a release date of 2099!
Another of the reviews states "Reviewed in the United Kingdom on 20 April 2016 On request for more info about this item, I contacted again Network on August 27, 2019 and received the following answer :
Hi, Thank you for getting in touch with us. Sorry as there has been no update regarding this title. As it currently stands, there is no release date scheduled for this title unfortunately. I’m fairly sure this title will not be released anytime soon. I hope this helps
With kind regards, GARRON STEVENS Network On Air."
Mark Evanier has posted on the show, most recently in one which notes "For some time now, we've heard that the original uncut episodes were going to be released as a DVD set in the U.K. but I don't believe that's happened." www.newsfromme.com/
Seems the Youtube uploader has cut the has cut the musical spots from the Eng.-lang. uploads, left them in for the German-dubbed ones.
e.g. "What a find for COLOSSEUM fans! Two songs, both played live: A short "Tanglewood '63" (04:40) and a very rare "Upon Tomorrow" (36:00) which as far as I know was never released on an album til the 6-CD-Box Transmissions: Live At The BBC came out in 2020, with a version of this song from the BBC Radio 1 show SOUNDS OF THE 70s on September 10th, 1971, shortly before the first split of the band. "Upon Tomorrow" is perhaps the most extreme example of Chris Farlowe's virtuosity and range. What a joy to see my favorite band on the same show as the great Orson Welles!".