There used to be Insignia TVs with the external power brick (power converter) that stepped down household 120v power to 12vdc power. I installed one of these in the bedroom and was able to to replace the power brick with a 12vdc direct plug-in cord and use the
12v outlet in the bedroom.
For the living room I couldn't find one of these, so I installed an Amazon smart TV which cost about $125. It plugs into an outlet powered by the inverter so we can watch when we're dry camping. Doesn't use much power.