OT: Any AV folks solve a problem for me?

[WILDCAT NATION]

Thinking of adding a second 65” tv in basement. Currently have a Sonos Arc with Sonos sub and two Sonos “one SL” for surround.
What would be the best way to run sound from both TVs through this setup with easy switching between the two (or maybe three).

 

[tathompson40]

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