The Era 100 is not intended for TV use as a stand alone speaker. The only time it should be used in conjunction with a TV is as a PAIR used as surrounds with a Sono soundbar. It’s also not recommended to send TV audio to any Sonos speaker setup as another room outside of a Sonos Home Theater as the result is a 75ms delay.
There have been instances where people have attempted to use an Era 100 connected to a TV via Bluetooth. However the results are less than favorable.
So, how are you trying to use your Era 100 with your TV?
Edit:
@Airgetlam types faster than me. Also we can’t see that another response has been submitted while still typing.