You can turn your Windows based computer into a TV/PVR -- you can watch and record TV programs -- with this handy inexpensive stick (the package calls it a "box" but it is not.) The supplied software worked fine with Windows XP on my LG laptop.
But with with Windows 7 Home Premium on my Acer desktop there was a conflict that Windows could not resolve. I uninstalled the supplied software and activated the stick and the TV function using Windows Media Centre TV feature. This method got the stick working. The picture quality of TV broadcasts and the recordings are not that great -- comparable to VCR quality or slightly better. But this was adequate for my purpose.
This stick seems to work just as well with analogue and digital signals. For USD $16.00 this is a bargain.