Blue Jeans Cable does make their Series-1 Belden bonded-pair HDMI cable in 80+ foot lengths. It shouldn't have any trouble keeping a signal in spec over that distance.

http://www.bluejeanscable.com/store/hdmi-cables/hdmi-cable.htm


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris