ATI HDTV Wonder
PC monitors are capable of playing back HD content out of the box. Unfortunately, the hardware manufacturers don't do a very good job of promoting this feature. You still need an HD decoder, which until recently meant an expensive add-on card that often didn't work reliably. With the release of ATI's HDTV Wonder card, HD is finally priced affordably and offers the same level of reliability delivered by standard definition TV decoders. The number of stations available depends entirely on the broadcasts available in your area. Major metropolitan areas typically offer considerably more HD content than smaller cities (for instance, Des Moines only offers 2 channels broadcast in HD). If you want the image quality of HD, without investing $1000 or more in a new television, the ATI HDTV Wonder is an obvious alternative.