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During the initial console setup, you have the option to enable some basic TV controls on the tablet. How does the Wii U "talk" to the TV when it's connected over HDMI? Is the TV controls sent over HDMI-CEC or does the tablet use an IR-blaster to send the signal?

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up vote 11 down vote accepted

It uses IR. The top of the GamePad has an IR transceiver to control the TV (I assume it also reads where you're pointing at using the sensor bar, the same way the Wii Remotes work).

In this picture, you can see the black transparent cover of the IR port on the top of the GamePad Image of the back of a WiiU GamePad, showing the IR port

Also, from the video on this page: Capture from Nintendo's WiiU overview video

"[...] [the IR transceiver] can be used to control your TV and communicate with other devices [...]

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Thanks! Good to know that line of sight is important when controlling the TV from the tablet. –  Mintx Nov 20 '12 at 19:34
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