This device is for sale on eBay for $69.95 + shipping ( buy it now price ) ... At this writing, the seller has regularly been posting the device on auctions as well, and if you're patient you might do a little better.
The device is manufactured in Taiwan using the EM2800 series chip from Empia Technology. Windows recognizes the device as a UAH3100 video capture device. Empia Technology does NOT have a drivers download page, nor were drivers for Windows OS listed anywhere except at the seller's website. Linux drivers are, however, available. eBay will not allow the link here, but you will find it through a web search.
I have no complaints ... Product was as described by the seller, delivery was prompt, and it worked. Quite well, in fact. I would go so far as to recommend it ... However, there are a couple of things you might want to know.
Don't look for a remote control or a patch cord that would allow you to use this as an analog video capture device. You might expect to find them, since many similar devices have these features, but this one doesn't, nor does the seller represent otherwise.
Also, the seller isn't kidding when he says HDTV reception requires lots of horsepower on the computer. On a dual-core 2 GHz AMD 64 bit desktop with XP Pro X64 edition, 2 GByte memory and a GeForce 6600 PCIe video card, it works fine.
On a Toshiba notebook with solo core 1.6 GHz Centrino and embedded Intel graphics, it staggers, with choppy video and unsynchronized audio. NTSC broadcasts (analog) are OK, but the image quality is nothing to brag about.
Vista drivers are available from the seller. I installed on an HP DV9000 notebook with Vista Home Premium 32-bit, Intel Core 2 Duo T5300 processor ( 1.73 GHz ) and 2 GByte memory ... It worked fine ... I did not need to install the PVR software, as the Windows Media Center in Vista has everything you need to view and record TV using this tuner.