居間にある薄型壁掛けTVの位置を英語で表現するには?

this is not a piece of advice to you I'm talking to myself for my practice of writing skills.
I've tried to put your sentences into GT. GT's translation is the next two sentences.
Location of a flat-screen wall-mounted TV in the living room.
A flat-screen LCD TV is leaning against the wall in the living room.
I suppose this is the matter you should decide yourself; because we're all on your side, ours might not become fair for its judgement.
:GT.
https://translate.google.co.jp/?hl=ja&sl=en&tl=ja&op=translate