After lighting things up with new PCs and a 10-inch tablet, Vizio is returning to its roots by unveiling a series of new HDTVs during CES, along with a few old ones. Among its more conventional sets, the E3D series has been bringing value priced passive 3D since last year, but it will be joined by the M3D series in a 47- and 55-inch model, the latter of which includes a Bluetooth QWERTY remote. If that's not enough, users can step up to the R3D series which come in the
