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Hi, Sassie. Thanks for your interest and reaching out to us regarding the compatibility of the LG Soundbar (S70TR) model with your LG 77" C4 television. This soundbar pairs excellently with the LG 77" C4 television, designed for seamless connectivity. When used together, they activate the LG WOW Orchestra feature, enhancing audio by merging the TV's speakers with the soundbar. For connection issues, use an HDMI cable to connect to the TV's HDMI eARC port for optimal audio quality and to fully enjoy WOW Orchestra. For guidance, you may visit https://www.lg.com/us/support/help-library/lg-tv-how-to-connect-a-sound-bar-or-receiver--20153207557627. For further assistance, please send us a private message on social media @LGUSSupport and our team will be more than happy to explore possible solutions. ^Juvy
Sorry, there was a problem. Please try again later.It'll work with ANY TV that has an HDMI or digital audio output
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