Do people really watch TV on the go via a laptop? With the number of products appearing to facilitate it, you would have to say yes. I'm just struggling to think of a suitable scenario. Does the idea excite you? Please let us know.
If you're taken by the idea, even if its only for novelty, the Pinnacle PCTV USB Stick is a portable tuner that converts your laptop for digital terrestrial TV.
Requiring no cables, it plugs directly into the USB port of your laptop and includes Pinnacle TVCenter software, which transforms the PC into a PVR, which means you can watch TV or record in MPEG-1/-2 and DivX video formats. Pinnacle TVCenter also has timeshifting, customisable channel lists, a trial of EPG and extra-fast Teletext, along with a remote control and antenna.
You can pick it up from March for around £50.