84 seems to be the magic number at IFA. 84 inches, that is, when it comes to 4K TVs. Sony announced its jumbo 4K set at yesterday's press conference, and now Toshiba has returned with a matching high-res model of its own. The Toshiba set has a slightly sleeker housing, aided by the fact that it didn't have side-mounted speakers as with Sony's flavor -- though, if you're able to afford a (
