Just because you didn't allow it on your local WiFi doesn't mean it did not connect to the Internet. Your neighbors might have a guest WiFi it can use. Or maybe it has a built-in cell modem. Your data is valuable, there's reason to put effort into getting it.

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dataflow 5 hours ago | parent [-]

Wouldn't using a neighbor's Wi-Fi without anyone's permission or instruction violate CFAA or some other law?

Also, wouldn't this be trivial to test by just setting up your own network and seeing if the TV connects?

	▲	bubblemoth 4 hours ago \| parent \| next [-]
		Xfinity (aka Comcast) routers broadcast a separate network for Comcast subscribers do use from their phone. I don't think it's unreasonable to think that Comcast and TV manufacturer's could have an agreement that would allow TVs to connect.
	▲	mixmastamyk 5 hours ago \| parent \| prev \| next [-]
		They have permission from the provider, why they are able to log in.
	▲	joquarky 3 hours ago \| parent \| prev [-]
		Laws aren't enforced against large companies.