Locate the HDMI output on your LG TV and the input on your external device. Insert the HDMI cable into each port to make the physical connection. Turn on your television to complete the connection and move forward to the setup process. To make sure your SimpLink is active and the HDMI connection is correct, select the SimpLink "Home" button on Disconnect the Beam from HDMI. Then turn off the TV (make sure it’s fully off and not asleep), then reconnect the Beam to the HDMI-ARC port. Disconnect all of the other devices from the HDMI except for the Beam and then set up the Beam. If you have other CEC-enabled HDMI devices, you may want to turn CEC off on them if you don’t use those Use the TV remote to option the settings menu and look for the option. You may also want to look at your TV’s instruction manual or just try performing a web search for the model of your TV and “ Enable HDMI-CEC ”. On a Vizio TV the option is located under Menu > System > CEC. This was at least easy to find and well-explained, although it Open the Settings > Remotes and Devices menu on your Apple TV. You’ll see an option for Control TVs and Receivers under Home Theater Control —set this to On if it’s not already. Once this is Select On to enable ARC. LG (SIMPLINK) CEC steps: Hold the Settings button on your LG remote for 5 seconds to open the Settings menu. Select All Settings from the bottom right corner of your display. Select General from the left menu. Select SIMPLINK (HDMI-CEC). Set SIMPLINK (HDMI-CEC) to On, and confirm. ARC steps: Using HDMI-CEC with the NVIDIA Shield TV makes it really easy to control the Shield with your TV's remote control. When paired with the Refresh Rate app show Sony = Settings> External inputs> Bravia Sync> Activate. LG = Settings> General> Simplink> Activate. Samsung = Settings> External device management> Anynet +> Activate. Restart the TV to apply the changes completely. Other names of HDMI-CEC, the menus can usually be found in the video settings. Himno, Denon, Vizio : Control CEC, CEC or HDMI. Don’t know how to turn on Simplink HDMI-CEC on LG NanoCell 4K Smart LED TV (webOS) so you can use the TV Remote control HDMI connected Device? Worry not, we iOpY.