I saw this as a very young child and it entranced my impressionable mind so much that I became absorbed with science and began building an interociter of my own. (It produced some impressively smoky pyrotechnics when I plugged it in - probably a fault in my dithermic cross-breeder flux capacitor - and I learned some new words as my father groped around in the dark to replace the house fuse. I went hungry that night and the workshop was off-limits for a while.)
It looks a little hokey now but for the time the science underpinning the story was surprisingly advanced and believable. Great for propeller-head kids. And Faith Domergue isn't unpleasing to look at.