You can use VGA cable between the TV and your laptop. Attach the TV to the VGA port BEFORE turning on the PC, turn on the PC and hopefully it will detect the external monitor first, if not, then you have to use the HOTKEYS function (Fn key and One of the key with monitor symbol). The HOTEKEYS function will allow you to select both internal and external at the ame time , or just the internal only, or external only. You will also have to set the refresh rate for he external to be at 60Hz and the resolution not to exceed the maximum the TV can handle, should look to see what the native resolution of the TV is in PC mode.