What it is: The MyGica A680B USB HDTV Tuner is a USB adapter that enables your computer to receive HDTV signals.
Why it's awesome: Besides allowing you to watch free HDTV on your computer, this portable USB stick lets you pause and rewind live TV, and even set and schedule programs for recording on your hard drive. The device is certified to work with Windows 7 Media Center, but MyGica doesn't make any guarantees that it will work with older versions of Windows. You've been warned.
Where to buy: Meritline