Sliders
In his basement in San Francisco, boy-genius Quinn Mallory unlocks the doorway to an infinite number of Earths. During a test run, Quinn invites co-worker Wade Welles and his teacher Professor Maximillian Arturo to see his new invention. But an increase in power and an early departure leave all three, plus a washed-up soul singer named Rembrandt "Crying Man" Brown, lost in a parallel world. Now they must "slide" from world to world, not only adapting to their changing surroundings, but also trying to get back to their world. Will they ever make it home?
GenerationofSwine@GenerationofSwine
I mean, wow.
The concept was pure science fiction, as in what it did was allow the writers to push the characters into whatever they wanted to, really.
And like all the best science fiction, as they jumped form dimension to dimension, the writers picked a philosophy, a political side, a religion, a cultural issue, an economic issue, wrote it to an exaggerated extent, and examined it...
... and then moved on to another, and another, and another.
In short, it was created to do exactly what SCI-Fi was meant to do, and that is why people love it. PURE SCIENCE FICTION. You can literally compare this to the Twilight Zone and it would be apt.