The 50 Greatest Sci-Fi TV Shows Ever Get ready for a lot of binge-watching. These are the 50 best TV shows of all time. A lot of great theme songs live on this list, but we may have hit the best one right here. From the great producers Sid and Marty Kroft, Land of the Lost scared the hell out of the kids of the 1970s with rubber suits and cheap stop-motion, forever associating the consumption of Saturday morning Alpha-Bits with the horrors of tyrannosauruses and Sleestaks. Now we know what will happen if we put all of our nuclear waste on the far side of the moon. From the British producers of Thunderbirds, Space: 1999 starred Martin Landau and Barbara Bain leading a group of eggheads trying to figure out how to get home.