WinTV-HVR-1600 brings over-the-air high definition ATSC digital TV, clear QAM digital cable TV and analog cable TV to your PC. Watch and record TV in a window or full screen using high quality MPEG-2. Clear QAM TV channels are unencrypted digital TV channels broadcast by your local cable operator. Many cable operators in North America are transmitting the high definition ATSC channels on their cable networks. They also broadcast the basic cable channels in using clear QAM. You can use the WinTV v6 application to watch and record these channels.