Cable box is connected via hdmi to new LG tv. When watching HD channels the ratio is incorrect. The picture is to large for the tv screen. I can not find how to correct this.
Example - watching news in the morning. You can not see all of the information because it off the screen. The TV is in 16:9 mode. I can not find the cable box video settings.
Cable box only says Xfinity - model PR150BNM