Supertrain
The TV movie-of-the-week Supertrain airs on NBC, starring Edward Andrews and Patrick Collins. The movie revolves around the inaugural cross-country trip of an atomic-powered luxury passenger train; the expense involved in creating the sets and miniatures for that train will prove to be an expensive debacle for NBC when the ratings drop perilously for the weekly episodes afterward. Steve Lawrence, Char Fontane, Don Stroud, and Keenan Wynn guest star.
More about Supertrain in the LogBook
Hear about it on the Sci-Fi 5 podcast