The rise of OLED and a lack of content made 3D TVs a short-lived fad. Ethan Miller/Getty Images As we gear up for the potential rise of Micro RGB TVs and the evolution of OLED, it's easy to forget that, for a brief moment, 3D TVs were everywhere. TV makers shoved the technology into most of their sets in the early 2010s, following Hollywood's obsession with 3D releases like Avatar and How to Train Your Dragon. But by 2015, as the TV industry started to focus on 4K and HDR-equipped TVs, 3D had completely disappeared at home. What went wrong? There are a few easy answers: 3D was just a pain to use at home, and Hollywood also oversaturated the market with low-quality 3D releases because they commanded higher ticket prices. Convenience is king for home entertainment, and 3D TVs proved to be an