Location for placing ESD components for UHD video
Check the load impedance and capacitance of the ESD diodes you are adding, HDMI is 100Ω. Or the easiest thing is to not include the diodes. If the cable is shielded and it runs down the length of the cable ESD is not likely to effect the ports and ESD has been shunted to ground where HDMI enters the device (which is probably the best place, its best to shunt ESD to ground at the entrance of the cable).

I would only have 1 pair of ESD diodes if the cable is shielded and the shield is tied to chassis ground properly.