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Just had a Samsung Q90T delivered & started reading about all the discrepancies between the Sonos arc & this Tv, with Dolby atmos not working & sound cutting out intermittently. Do I return it before I open it for an LG OLED GX or not ?

Hi @Scotsstu, Thank you for reaching out and welcome to the community. About your question on losing CEC/ARC connection on this Samsung Q90T TV, We have an ongoing issue, and we are still waiting for a fix from our team regarding this concern. You may check this article about Listening to Dolby Atmos on Sonos Arc on your TV for reference. 

Let us know what you have in mind with the advice above.

The Sonos community is always here to help.