Amazon.com offers the highly rated, super cheap Roku LT Wireless-N Streaming Player for $49.98 plus free shipping. This is compatible with almost all TVs. This is the best deal we could find currently and one of the cheapest streaming players you can buy.

What this does and why you need it:
Key features includes 300+ channels with movies, TV shows, music, sports & more; High-definition streaming up to 720p HD; Works with virtually any TV; Built-in wireless (Wi-Fi b/g/n); Smaller and more energy-efficient than any other streaming device.