A:AnswerI would worry about the temperature as well as the moisture you may experience in a screened porch. I would be concerned about this in any brand of TV because temperature and moisture are not good elements for a smart TV or any TV for that matter. They are not hermetically sealed. I don't know where you live but heat is also an enemy of electronic circuitry.
A:AnswerIf you’re trying to make it look professional and you don’t know how to then hire a professional. I’m actually running power up behind my tv and boxing in behind where the tv is going so I can make sure the mounting bracket is solid to the wall.