Finally got a manual that works and found this for mine - " When a PC is connected to the TV, Entertain mode is available. " If Entertain mode is not available, set Edit Name to DVI PC or PC.
To do that Select SOURCE then TOOLS button. Select Edit Name. For some reason I don't have the keyboard here though I've used it. There is a list of about 10 names that I can select. I think I'll be using a monitor since it's less troublesome, whether games are free or not.