Pinnacle PVR USB Key

This very cute little terrestrial TV tuner with included PVR software is only available in the UK but records television in MPEG-1, MPEG-2, and DivX formats and sells for about $100. While the PVR software isn't actually on the key itself, it's certainly a compelling idea.

Pinnacle Announces USB Stick with Built-in PVR [DigitalMediaThoughts]