>>11279242The two licensed sets that make sense are the Polar Express and Harry Potter. Lionel has gotten quite a bit of milage out of the Hall Class tooling over the years Withe the Shakespeare Express and several others. It can be argued the Polar Express saved the company, but it is annoying that they slap Polar Express livery on everything that moves and some things that don't. Pic is a Polar Express Berk with the Williams 726 Berk.