The science fiction genre is arguably the richest of them all. Filled with compelling stories, unique characters and innovative concepts that think outside of every box imaginable, sci-fi has been convincingly pushing the boundaries of believability for decades.
That's particularly true when it comes to television as we've seen an endless supply of science fiction thrillers, horrors and even family dramas make their way onto our screens. And, they're welcome additions because, in all honesty, you can never have too much of it.
Unfortunately, all good things must come to an end and over the years we've bid farewell to a number of sci-fi greats. Whether it was a long-running staple of our TV schedules bowing out or an abrupt cancellation that took our faves from us, the fact of the matter is you just weren't ready to let go of it.
On that note, let's delve into the TV annals and take a look at some of these sci-fi gems that we'd love to see return to our screens for a well-deserved revival. From game-changing genre pieces to an underrated superhero in the making, our televisions are in need of some comebacks...