Nighthawe c7800 interference with TV on digital antenna

[Hregiment]

I just installed a Netgear Nighthawk C7800 modem/wireless router.  I immediately started experiencing pixelation on my TVs running off of a digital antenna.  Is this a common problem and is there a fix or setting that I need to adjust?

[plemans]

off of a digital antenna? Is the antenna directly connected to the tv or is it going through a coax splitter/home setup? 

[Hregiment]

In fact, a single digital antenna has been supplying all of the TVs in our home.  Necessity requires that there be coaxial splitters in the setup.  I was able to solve the problem by rerouting the coaxial cable.