"While existing websites can be displayed in Google TV, the user experience isn't always ideal within the context of a living room," Steve Hines and Daniels Lee of Google TV Developer Relations Team wrote in the Google TV blog today.
Blockage of such "less-than-ideal" sites could actually have been what caused Google TV to have such a disappointing launch in the first place.
Within the first month of the service's availability on the Logitech Revue set top box, ABC, NBC, CBS, Fox, and Viacom all made their websites unavailable to Google TV. The idea was that this would limit users' access to only the sites that the content providers designed specifically for Google TV.
If you're a pessimist, you could say it was done to limit users' access to certain streaming video content. If you're an optimist, you could say it was to ensure users had the highest quality sites available on their Google TVs.
The templates require that you have the Adobe Flex 4.5 SDK installed in your IDE, and the Flash 10.2 plugin for browser-based testing.
They can be downloaded now from the Google TV developer resource page.