Panasonic 55&rdquo; Class (54.6&rdquo; Diag.) 4K Ultra HD Smart TV CX400 Series TC-55CX400U 4K Ultra HD Direct-lit LED 120 Hz Refresh Rate 3 X HDMI / 1 X USB 2.0 / Wi-fi Built In Dimensions W/Stand (WHD): 48.97 X 30.19 X 11.1