There was a home video tape format called Video 2000 (V2000), that was released in late-1970s and discontinued in late-1980s. It was mostly owned by Philips. These kinds of tapes can literally record video content on both sides in the similar way as audio cassettes.
The format itself, had minor success in Europe, just like what Sony's Betamax (Beta) had its same level of success in the US. However, both of them lost to VHS. But, Video 2000 is obscure and unpopular in North America.