Thanks to the uploader and You Tube, we can still watch it today.
Yes, that link
still works.

Was it just my eyesight or was the HST▸ running wrong line on the Forth bridge?
Your eyesight is fine - that HST
was running wrong line. See 1:26 minutes into that clip.

By the way: the above comments from me have been prompted solely by my reviewing this particular topic, as part of my ongoing work on splitting the 'wider picture' board.