If you don't want to buy a game console, you can always buy some thing like a Roku. It's cheap, runs from $49 for a 720P one with wi-fi, to $99 for their top of the line that can play games like angry birds. If you don't care about games, the $79 has wi-fi and is a 1080p streamer. Some of the things Roku streams:
http://www.roku.com/Libraries/Products_Page/logocloud.sflb.ashx