I don't think he's talking about the TV but the Denon, as shown in the Owner's manual page 119:
View attachment 29738
If your CDP, DVDP, or BDP is connected via coax, opt, or analog, it shouldn't be affected by your TV. If it is a DVD or BDP player connected via HDMI, then you need to have the HDMI related settings done correctly. Assuming you have done everything right on the Denon side, you should read the manual of the TV and make sure you have everything set right also. I don't have time to read the Samsung's manual until next week, but hopefully you can figure that out yourself, or someone familiar with Samsung (that particular model) will chime in and help you out.