Hi @jacob_7
Welcome to the Sonos Community!
At the time your diagnostic was submitted, there was nothing actually coming through - it reports silence. However, I can see evidence about a minute prior to this which indicates that the Beam repeatedly found issue with the incoming stream. Ordinarily, I’d look at the cable’s connection, but as you clearly indicate that this buzzing sound only manifests towards or after the end of an advert session, this makes me think that the issue is either related to the software on the TV/source device, or the how the 4OD servers deliver the streams. It’s not likely to be the servers (unless there are other forums full of discussions of this problem).
I’d highly recommend rebooting the TV by unplugging it from power for at least a couple of minutes. If you are using a device external to the TV to watch 4OD (like SkyQ or Virgin Media), I’d reboot that too.
Once the TV is back on, please check it for available software updates.
To clarify - the Beam continues to make this noise, regardless of the TV switching channels/sources/apps, until the Beam is rebooted? If - after rebooting the TV once - the issue reoccurs, please reboot the TV again instead of the Beam to see if that stops the noise too. If it happens again after that, please try using the Sonos app to play music to the Beam - does that stop the noise? Does it return if you then switch back to TV audio? Thanks
I hope this helps.
"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein