In addition, Google reworked the YouTube component to make it faster and easier to use, including a simplification of the process for creating user-defined YouTube channels.

Finally, Google has opened up Google TV to Android developers, who can tweak existing applications or create new ones for the platform. Already 50 developers have Google TV applications available on the Android Market.

Google TV now also runs on a newer version of Android -- version 3.1, better known as Honeycomb.

Sony devices will get the Google TV software upgrade early next week and Logitech devices "soon after," Google said. The company also has deals with Samsung and Vizio, but those vendors haven't shipped devices with Google TV yet.

Devices already out in living rooms will be upgraded remotely, requiring no work on the part of users, a Google spokesman said.