Includes two, built-in ATSC/QAM TV tuners - record on one channel while watching on another TV tuner for your Nvidia Shield or Windows PC Use the included WinTV v10 application for Windows and have picture-in-picture or two complete TV windows open simultaneously Watch, pause and record two channels of free over-the-air ATSC HD TV and clear QAM digital cable TV. Or with the WinTV v10 application, have dual tuner picture-in-picture.