At a Glance: Four-port HDMI switch • Inconsistent 2D-to-3D conversion • 3D conversion of video games causes lag

Believe it or not, the idea behind 3D movies started in the 1890s when William Friese-Greene filed a patent for a 3D movie process in which two films would be projected side by side on the screen and the viewers would look through a stereoscope to converge the two images. Needless to say, this didn't take off given the impractical viewing conditions. Over the next 100-plus years, 3D would attempt—and fail—to catch on with audiences.

Bob Carver is a legend in the A/V industry, and when he formed Sunfire in the 1990s, the company’s name became closely associated with subwoofers. In 1996, the Sunfire True Subwoofer, as it was marketed, was born, and it popularized what eventually became a whole new subcategory (so to speak) of the speaker industry. The 11.5-inch cube produced a copious amount of bass from a small enclosure by utilizing specially designed drive units and a patented Tracking Downconverter (TDC) amplifier that could dynamically adjust its power supply based on the incoming signals.