First cabinet above the dinette next to the door has your box for hdmi cables, check to see they are all plugged in securely. Check your coax connections on the back of the TVs. If everything is plugged in you may have some bad cables which will require a trip back to the dealer for replacement. As you will soon learn the Seiki TVs are junk! Changed out my TVs to Samsung and now get over twice as many over the air channels. Seiki TVs will not work with most campground cable systems without a converter.
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