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Roku showed a network media player that is simply a large dongle that connects directly to your TV set. Shrinking the already small Roku 2 design even more, the new device doesn’t reduce the content or experience.

The Roku dongle will connect to an HDMI port on your TV. It will not come with its own remote. Instead, once connected, you can use the TV remote to navigate the Roku’s home screen, channels and to control playback.

At the conclusion of Sony's press conference, American Idol sensation Kelly Clarkson performed her tune "Mr. Know-It-All" with acoustic guitar. The sound system was too loud, and I'm not a big fan of hers, but the audience seemed to enjoy it immensely.

Not to be outdone by its cross-town rival LG, Samsung introduced its own 55-inch 3D OLED TV at its press conference today. This gorgeous, ultra-thin masterpiece incorporates a dual-core chipset that allows multiple Samsung apps to run simultaneously. Like the company's other high-end TVs, this one includes Smart Interaction technology that lets you manage your TV experience with motion control, voice control, and face recognition. Welcome to the next generation of television!

THX has been applying its grey cells to the power amplifier, as THX grey eminence Laurie Fincham explained. The prototype shown uses what he calls a Class ABC topology with newly tweaked rail-switching power supply and compact ceramic (as opposed to bulky electrolytic) capacitors, all run off a lithium iron phosphate battery (yes, iron, not ion). In the picture you see a super-skinny two-channel output stage; adding capacitors would make it only 25 percent larger. Anyway, the result is a powerful low-profile amp that runs cool and efficient, avoiding both the power piggery of Class A and the problematic performance of Class D. And yes, it sounded great with Sonus Faber speakers and Steely Dan's "Gaslighting Abbie," achieving both well controlled bass and a high degree of overall transparency. Why this, why now? Fincham points out that his team is liberated from the tyranny of the product development cycle, enabling them to take a longer view and to incorporate ideas from the entire history of audio going back to the 1920s but also including the latest tricks. For example, the type of battery used is relatively new to audio but has been deployed in things like power tools and electric bikes. The THX amp design has yet to be built into licensed product but current licensees are getting their first look at this show. Potential uses include everything from inexpensive compact products to BD-receivers to high-end multichannel amps.