If I turn on tuner sharing and put two Apple TV's on the same channel they should be pulling the same stream from the server right? Odd thing is I frequently find that one ATV will be several seconds behind the other, and really odd thing is it's the one on ethernet while the one on wifi is ahead? That seems counterintuitive to me.
They're fed the same content, but network conditions may cause them to not be in sync. (In fact, I have never had them play in sync.)
I asked a question similar to this a couple years ago around Super Bowl. I play the game on multiple TVs and can not get them in sync. I wonder if the devs know of other ways to sync AV over a network.
Googling the topic came up with AVB / TSN : audio video bridging / Time Sensitive Network Audio Video Bridging | Time-Sensitive Networking Solutions
The client API has a seek endpoint which can take fractions of a second. You could rig up some buttons on a Stream Deck or on a webpage that let you nudge your TVs by -0.1 and 0.1 or something until they sound in sync to you.
It's a manual process and it would get screwed up if you pause any of them or have a network interruption, but it could work out.
I run Steam Deck Companion instead of the standard software that gives a lot more control over what the buttons can do.
I haven't ever done this, so I don't know exactly how it would work, but it seems like a plausible strategy.
I was more curious than concerned. Just was odd to me that the ATV on wifi was always ahead of the one on ethernet. You would think the latency on wifi to be higher.
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