https://www.facebook.com/bhasker.solanki/videos/10158143760147884/?t=21
Thanks to Bhasker Solanki for sharing this video of the Pebble Mill site in Jan 2020. It looks very different from when it was a broadcast centre, with only the road past Security at the end of the video looking the same.
Copyright Bhasker Solanki, no reproduction without permission