Amazon just delivered my brand new "AVerMedia AVerTV CaptureHD", which allows me to capture the HDMI-output of my Xoom directly on my PC. Together with a HMDI->MicroHDMI Cable you spend about 100€ for a great recording experience. The app that comes with it provides easy setup, tv-watching, timeshift and recording functionality.
The only thing that sucks is its UI, it looks like at least 5 years old. But I give a damn about the UI if everything works
http://www.amazon.de/AVerMedia-AVerTV-C ... 172&sr=1-1