Thanks Danny, the TV is definitely out putting audio through the headphone port is it still works fine when connected to the line in-port of an old Bose wave radio I was using for TV sound and may still have to by the looks of things, a bit misleading calling it line-in functionality and mentioning that it can be used with turntables & cassette / music players. Any other ideas ?
You’ve probably checked that everything is wired correctly, so probably not that. Different wires perhaps? I’m not aware of any setting on Sonos you could be missing. Maybe reboot (unplug for a few seconds) the Era speaker? I guess the next thing I would try, if I have another audio source with line out, like a second TV, is connect to that and see if you get audio.
Another thing...maybe give bluetooth connection a try if your TV can output in bluetooth. I have that setup with my Era 300s and don’t really see a big lip sync issue like I was expected. It’s not a setup I would use for ‘serious’ TV watching, but seems fine casual watching every now and then.