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LG 75UM8070PUA has LG Sound Sync, Digital Audio Output (Optical) and Bluetooth support. The issue with not having eARC maybe the inability of the TV to support 4K Passthrough (HDCP 2.3). For further assistance, please reach out to our technical support team via private message on Facebook @LGUSSupport and use #VOC in your first message to our social media support team or call at 800-243-0000. ^Daphane
Sorry, there was a problem. Please try again later.You can use other ways to connect like optical or Wi-Fi or Bluetooth. You do not have to use eArc.
Sorry, there was a problem. Please try again later.
