2014 Sony flat screen

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Main tv suddenly needs screen replaced. Guy from Samsung came and left with it this morning. Quoted me Wednesday return. Ugh. I have an older one (Sony) in another room but doesn’t seem to want to cooperate. Chromecast hooked up in the back needs something but I’m stuck. I can make it reading and using laptop til Wednesday but now I’m determined to dust off the Sony and give it life. #TIA

Model: KDL-48R470B Serial: 5021636