The movie Flashback with Dennis Hopper and Keifer Sutherland, and of course Throw Momma From the Train! Poor old Momma, that was a mean looking little old lady.
What happened to Extreme Trains? It wasn't the best, but it was pretty good and had alot of info on modern operations.
Modern Marvels had a rail episode with the huge BNSF yard featured.
There is a show I just found called Trains and Locmotives which is on a weird little channel called RFD. It mostly seems like a public access channel for farmers. The Trains and Locomotives show had some great transition era footage though, and the sound on much of it was impressive. That channel also has a vintage farm tractor show too. Aside from their beautiful restorations, those old guys should not be on TV.