It was on out of Tempe AZ on the educational channel there. It was just named Alaska I believe. There was some narration. Would start a segment with a map blow up of an area then zoom in and show areial shots of the scenery....BOY, what scenery. The shots of the WP&Y showed the train under steam heading up to the pass. Only about three minutes or so. But nicely done, none the less.
It also showed the Copper River country and the remains of all the big mines there. Did not show the Million Dollar Bridge though....
Don't remember much else, it was after 10 and past my bedtime.
Hope it helps.
Fred