It is not that there are not plenty of other alternatives to Google TV... it is that there are too many alternatives.
- You can connect your PC's video output to your TV, there are plenty of devices to do that.
- You can buy a set-top box that plays media from your PC on your TV (PopcornTV and other similar things)
- Vizio TVs have built-in apps for various web sites
- Apple TV
- Remember WebTV that was part of the first DVR - "DishPlayer" ?
- The new Sprint/GoogleAndroid 4G "EVO" cell phone has an HDMI connector
Nowadays, when media people say "there is no way to..." what they really mean is "there is no established standard way to..."
In my case, my main PC has an HDMI jack on the motherboard that goes straight into my HD TV and I use a MS remote designed for their MS media software (although a wireless mouse would work fine as well). The new HD Youtube format looks pretty good...