Technically not an STB but you might want to give the Tablo OTA DVR a look. It connects to your antenna and LAN, your TV connects using a local app or a Roku/Firestick etc.
Glad you found something that works for you. It really bugs me with people think that the solution they use is the best and everyone should use the same when in reality we all have our own particular likes and dislikes. AKA "Different Strokes for Different Folks"
That is rather warm, my dual has not ever felt that warm to me. I do have mine in a 19" equipment rack that gets a lot of air. Sorry the Tablo wasn't your answer, hope you find an OTA DVR that works for you.
