Question what spec am I looking for when looking? Like how do I find which is the input lag and response time? Samsung UN55RU7100FXZA Flat 55-Inch 4K UHD 7 Series Ultra HD Smart TV with HDR and Alexa Compatibility (2019 Model) https://www.amazon.com/dp/B07NC9J2M5/ref=cm_sw_r_cp_api_i_63pMEbKVDV8MA this is the one I have