A:Answer If your service is through a cable service provider, make sure that the Closed Caption feature is turned on in the cable Set-Top box that you have connected to the LG 43 Inch Class 4K HDR Smart LED TV (42.5'' Diag), Model # 43UM6910PUA. If you still need further assistance, please contact our Support Center at (800) 243-0000...^IFV