The ATI All-in-Wonder HD
The selection of HDTV Tuner Graphics Cards is unfortunately very small, and until recently the only choices were generations old. Recently however, ATI released the All-in-Wonder HD, Based on the HD 3650 512MB Video Card and Theater 650 Pro Tuner card. The HD 3650, while certainly not a high end video card, is no slouch, and will be able to play most modern games at comfortable framerates. As with all HD 3000 series cards from ATI, the HD 3650 is Directx 10.1 compliant, so it's relatively future-proof when it comes to new games that include those features.
Sometimes when watching HD video, stuttering can occur because the CPU has to balance rendering video with several other tasks at the same time. An additional benefit that the HD 3650 brings is GPU-based video acceleration, which means that the CPU can offload the rendering of HD video to the graphics card, alleviating most stuttering issues.
The Theater 650 Tuner includes a few features that can improve the quality of HD television, such as noise reduction and edge detection, although the quality still won't match that of a cable box hooked up to a television. Even so, for people who just want to watch TV on their computer it will serve just fine.
This card features a multitude of outputs and a coaxial input. The available outputs include HDMI, DVI, S-Video or Component, and the coaxial input can connect to digital or analog cable, or use the included antenna to receive over-the-air transmissions.