I'm guessing lawyers would get involved to shut that type of service down. Right to repair laws might help, but this sounds like the model for people selling modified PlayStations. There are companies that will re-house a photography lens to be cinema friendly. The lens manufactures don't stop this, because it doesn't really affect their bottom line. TV manufactures would lose the money they made agreements with 3rd party people, so you know they would be more litigious to protect that income.