Just google the specific TV and look at the specs on the company website, it should be listed.
https://www.jackery.com/blogs/knowledge/how-many-watts-does-a-tv-use indicates 50W is probably a bit low, but would depend on your particular model.
It’s also like how cars calculate mileage.
Got brightness down as far as it goes and volume basically muted.
So could it be rated that low? Sure.
But would it actually only use that much? Nope.
Mine warns me when I turn brightness up etc, that this will use more power. Have to click OK on it. Was pretty annoying in the first days while getting the settings right for me.
Mine does the same but it says I’ll strain my eyes lol
I’m guessing it’s an EU model. They have all sorts of “eco” modes to pass environmental laws, but you wouldn’t use them IRL
So yes, it could, but fuck that, stick it on dynamic HDR and drive your eco friendly -ish car to compensate lol
Is it possible that the local version of Energy Star for my TV used the Eco mode setting for the tests?
They usually test whatever the manufacturer says is the default. And that most likely happens to be the lowest power mode that barely resembles a reasonable usage.