• Connect one end of the video cable to the computer's Thunderbolt port, HDMI port, or DVI port, and the other end to the TV's video input port (using an adaptor if necessary).
• If you need to change the resolution on your TV, go to Apple menu > System Preferences, click Displays, and then choose Default for display to use the best resolution automatically or Scaled to choose a resolution manually.
• Choose Apple menu > System Preferences, click Sound, then pick Output if you want your HDTV to play both audio and video from your Mac.
• From the list of devices, choose your HDTV. Select a different device to play audio (such as the speakers on your computer or an AV receiver that's part of your sound system).
• Note: If your Mac has a Mini DisplayPort, make sure you use a cable (and, if required, an adaptor) that can handle both audio and video.

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