Following the success of ’60s series like Doctor Who and Star Trek, the 1970s introduced a variety of inspired, fun science fiction adventures. Though the technology wasn’t as advanced during the ’70s and didn’t allow for elaborate special effects appreciated in today’s sci-fi TV shows, the low-budget quality of the series’ special effects adds a unique charm. While some shows leaned into the action-packed campiness of the decade, others preferred a grounded approach to the genre.