Welcome to Thomas and Friends Classic RPG. This was when after Thomas and Friends book. It first got adapted to the TV Series. What made the Thomas and Friends Classic series special is that unlike using stop motion or using Clay animation. Original Thomas was famous for being real model engines with moving eyes and smoke units that's all I know so far. It only lasted for Season one to Season eleven. Before it got rerant into. The CGI Series by none other than Nitrogen Studios.