I thought it was every 0.5 seconds for Samsung. Anyway, this is why my Samsung TV has never been given Wi-Fi. Unless they added a SIM card to the thing and are footing the bill to stream my TV over 5G then this is moot. And if they did that I won't even be mad, that's commitment.
Your smart TV is taking screenshots of your screen every 15 seconds.
Not a guess. Not a theory.
A peer-reviewed study by researchers at UC Davis, UCL, and UC3M tested it.
Samsung TVs: every minute.
LG TVs: every 15 seconds.
Even when you're just using it as a monitor.
Here's how to turn it off for every brand: