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I have an LG C9 OLED, I have on the TV "Mutli-View" where it will show two inputs at a time, I thought is would be as simple as adding a splitter before my box, running a cable to the box, and to the coax input, set up channels, and that would be it, however it is not detecting any of my X1 channels when I do this. Does anyone have any suggestions?

Thanks