FYI: My Samsung TV streams movies/music/photos from my home network, downloads NetFlix, plays youTube content, Yahoo widgets, has games, recipies and does all of this better than my XBOX 360 can do (plays more video formats including MKV.
That and I only have to power on 1 device (instantly) to do all of this. The TV is the perfect appliance to have this functionality built in.
I love HTPCs, but I'm predicting their death right here. Too complex, too expensive, not very integrated, slow to boot up and they take up space. Death to HTPC!