This show was awful. I've watched many PBS shows over the years and was appalled by this show's sloppiness. In addition to the errors pointed out above, there were images of Northeast Corridor Amtrak trains when the discussion was about Chicago area railroads and a view of a BNSF train was shown when the Transcontinental Railroad was mentioned. Really PBS? - would have it been really that difficult to get images from the Union Pacific?
Otherwise, I feel that PBS has covered public transportation and railroads much better than any of the major commercial networks. A couple of years ago, PBS aired its Blueprint series. Here is link to the Blueprint program about light rail in Charlotte North Carolina which I feel is a much higher quality program:
PBS Blueprint - Charlotte WARNING: Those who are offended by biased TV programming are warned that this is a pro-public transit program.
Other past PBS transit and railroad programs which were well done
American Experience on the building of the New York City subway (also presents public transit as a good thing)
An American Experience program on streamlined passenger trains.
Rio Grande Zephyr program
Tracks Across the Sky - about the Kinzua Railroad Bridge in Northwestern Pennsylvania
Murder on the Orient Express and companion show about the making of the Murder on the Orient Express
Tracks Ahead magazine style program about railroads, public transit and model railroads (later episodes were the best)
"Things that aren't there anymore" - a program of Pittsburgh nostalgia which included the Fineview trolley line, the last remaining trolleys in 1989/1990 and the experimental Westinghouse Skybus in Allegheny County's South Park.
A History Detectives segment discussing the Denver & Intermountain Railway (now there's something you will never see covered on FOX!)
By contrast, I have NEVER seen any real transportation programming on any of the other major non-cable networks (i.e ABC, CBS, FOX & NBC)