This is a post from a Brit. In 1980 this show was - briefly - notorious because the BBC bought it from NBC for a pot of money before it was broadcast in the US. When it turned into the flop of all time the 'Beeb' was left with a lot of questions to answer because it is funded by taxation; in the UK we pay for a 'licence' to have a TV in the house, even if we only watch DVD's or cable channels. A lot of taxpayers' money went down the toilet. I never heard why it failed so badly, after all 'Love Boat' ran for 10 years.
In 1984 or 1985 the pilot was shown on the rival Independent TV network. I watched out of curiosity but now don't remember a great deal, except Keenan Wynn was dying and committed his company to building the Supertrain knowing he wouldn't live to service the cost, and there was a manic looking engineer who seemed to think he was driving trans-continental in about 1875. Oh yeah, and the bad guy came crashing through the observation car window when he tried to escape by climbing on to the outside of the fastest train in the world.
Hmm, maybe I just answered my own question...