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Samsung TVs will get 7 years of updates, starting with 2023 models
(arstechnica.com)
This is a most excellent place for technology news and articles.
No. Ad revenue offsets the cost of TVs. That's why they've become so cheap. Very few people would pay the extra cash for TVs without it so they don't manufacture them.
Easy solution: buy an external whatever and never connect it to the internet. HDMI-CEC means it will turn on and auto switch the input to whatever device turned on.