Hi there @Olaf Z and welcome to the Sonos Community!

I’m sorry to hear you have been unable to connect the Ace to your TV. Apologies for the delayed response, it has been quite busy around here recently. Can I first confirm whether you are following the steps listed in the following guide: Pair your Bluetooth device with Sonos Ace ?

It would also be worth trying to pair the Ace with a different Bluetooth device such as a smartphone, just to test whether the issue is unique to your TV. Please let me know how you get on.