A "d" in front of the channel number indicated digital. Also, if the channel has an "a" in front of the channel number, it is an analog channel/source. It should show the res for that particular broadcast. Mine shows 720, as thats what my input is. Hitting the "display" button should show the res. You can toggle between "video" and "graphic". Re: how to change to 1080p 120 Hz on an RCA LED55C55R120Q TV?Īppears to say it needs to be HDMI or DVI input.Īrrow over to the "setup" box, "select" it.Īrrow down to the "video style" selector.Īrrow left or right to select "video".
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