Its funny, that I and many other First Blood nuts, have been searching for this material for years (nearly 30 in my case), and it wasnt until I came on this site, and a fellow forum member just happened to mention he might have this footage on a VHS tape, he recorded off Canadian TV back in 83. He wasnt quite sure if he still had it, but would have a look in his garage...well the rest is history.
Enjoy guys, please feel free to leave a comment on my friend Herve's youtube account, as Herve has done many great On The Set documentaries on some great movie classics, which you can see on his youtube account. :-)
YouTube - First Blood Rambo Rare Deleted Scenes (1982) Stallone