Bjorn3D take a look at the AutumnWave OnAir GT (USB HDTV Tuner).
A quote from the article:
AutumnWave OnAir GT (USB HDTV Tuner) Review
A few months ago, I reviewed the VisionTek TV Wonder HD 650 PCIe. It is a great expansion card for desktop users but it has small limitation that it will only work with desktop. For the user who is always on the run or has committed to use their laptop as their primary PC, it is not an option. There is no shortage of TV tuners designed for laptop users from many desktop TV tuner manufactures. They come in different shapes and forms and connects through laptops via USB, ExpressCard, and PCMCIA. Despite the fact that the PCMCIA is quickly being phased out in laptops and is being replaced by the ExpressCard, you can still find some of these cards on the market specially for the old analog tuners. Whicheve card you choose ultimately depends on what expansion slots you have in your system.
For most users, choosing a TV tuner with USB connection seems to be the most ideal solution since USB has become the standard connector for peripherals for both laptops and desktops. So, today, join me as we are going to put the AutumnWave OnAir GT, a USB HD TV tuner, to the test. Let's see if this TV tuner is able to deliver what it has promised.
AutumnWave OnAir GT (USB HDTV Tuner) Review