In order to access Captioning, you will want to head into the TV's menu, then into the setup or system sub-menu to access the CC options or to just activate it, press the CC button on the remote control. However, CC is only available via the coax cable since the CC signal has to be sent by your service provider. The CC information cannot be sent via HDMI or other secondary connections from 3rd party devices. That said, most service provider set top boxes and DVD/BD players will handle CC on board, which will then be displayed on the TV as part of the video signal. If your TV is displaying captions, but the caption system is turned off at the TV, then most likely the captions are coming from the 3rd party device that is connected to the TV. Captions are subject to your service provider’s availability. Additionally, the CC option cannot be set to come on automatically when MUTE is activated.

-MrSamsung

As a matter of fact, all of the Samsung Galaxy Tablets (Note 10.1 and Tab/Tab2) will have a built-in GPS unit.

-MrSamsung

I'm very sorry for the confusion, but since the UN39EH5003 does not offer any audio outputs, the only way to get audio to go to your audio system is to connect the audio outputs from your other devices to the audio system itself.

-MrSamsung

This SGS3 (model SGH-i747) should indeed work with AT&T's 4G network (LTE 700 MHz Class 17 / 2100).

-MrSamsung