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Hello there, BettyBoop. Thank you for reaching out to us regarding the LG 55QNED70AUA. We understand your inquiry regarding the compatibility of this TV with your Vizio V51-H6 surround sound system. Yes, the LG 55QNED70AUA will work with your sound system. This TV is equipped with an HDMI eARC port (located at HDMI 2) and an Optical Digital Audio Out port, both of which are standard connections compatible with the Vizio V51-H6. Additionally, the TV supports Bluetooth (v 5.0) connectivity. https://www.bestbuy.com/product/lg-55-class-70a-series-qned-ai-4k-uhd-smart-webos-tv-2025/JJ8VPZWR67 If you have any further questions about its features, please contact us on [email protected], and our team will be more than happy to assist you. —Renzo
Sorry, there was a problem. Please try again later.What connectivity does your Vizio Model # V51-H6 Surround Sound System have? External receivers, Soundbars, or Home Theater Surround Sound Systems can be connected to the LG - 55" Class B5 Series OLED AI 4K UHD Smart webOS TV (2025), Model # OLED55B5PUA, in one of three ways. The TV is a Bluetooth-enabled TV (Bluetooth ver. 5.3), so if your surround sound system supports Bluetooth, it can be paired with the TV for a wireless Bluetooth connection. The TV features an HDMI eARC port HDMI 2), which can be connected to an HDMI ARC/eARC port on an audio system with either port, and it also has an Optical Digital Audio Output that can be connected to an Optical Digital Audio Input on an audio system...^Ivan.
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