This was a very promising and ambitious pilot for a TV series, based on the novel and early film, "Journey to the Center of the Earth." It presented loveable characters and a workable new world in which to cast an imaginative TV series, something that would win both fantasy and Sci-Fi audiences. The pilot was a great success, much more so than expected. Yet, the series never got the 'go ahead', as strange as it may seem. That deserves looking into.
Anyway, a nice TV movie for fans of the imagination.