Working With Dinosaurs, The Stop-Motion World of Ray Harryhausen was a half-hour programme about Ray's work broadcast on the UK's Channel 4 in 1999. Ray actually animated one of his skeletons in the show, his first animation since Clash of the Titans! It has never, to my knowledge, been either repeated on TV or released on DVD. I recorded it on VHS at the time and digitised it a few years ago.
A couple of days ago I sent a friend the avi file (which is 488Mb) via WeTransfer. You can also download it from WeTransfer via this link if you wish to have it:
The file will remain on WeTransfer's server until 23 May, upon which they will then delete it.