Many 4K sets have shown issues with pre-4K devices. I don't see a full model number but the usual things to try are:
1. Connect to the HDMI 1.x port.
2. Be sure the TV firmware is the latest. (Sorry folk, ask Samsung how to check and install.)
When setting up our new Samsung 4k TV and trying to connect with DISH there is a disconnect. Samsung and DISH both tell is it’s the fault of the other. The TV won’t display the DVR menu. Any ideas?