3. Betamax

Date: May 10, 1975

Though it was considered the superior technology at the time, Betamax suffered from bad marketing and limited space. The tapes only recorded up to one hour of video, as VHS tapes held up to two. Sony also took its time licensing the technology and refused to let the pornography industry produce video via its cassettes. Who turns down porn money during a time when its films are being featured in nationwide theaters and making a killing on VHS sales? Answer: Sony. Betamax would go on to become a long-running joke on Married With Children as the Bundy's obsolete video player, preserving its place in pop culture as one of the biggest tech flops. Ever.