it is a regional thing around here if a 66 or 110 is considered overvill or not. more common than not now the cat 5 should be kept 2 inches away by nec i believe im more familiar with bicsi and they require 6 inches or more. as for cable/coax we use a "siamese cable" has a cat 5 and a rg 6/59 which ever you want. we run those to a central location also if there is more than 2 units pulling from the feed you should have an amplifier/ booster put in again this is a quality issue not a code issue, what will happen as the Db drops about 3 loss per set you start to get ghosts and distorted colors and at the very worst snow or the white/ pink noise of no reception, most new tvs have a sensor that turns the screen blue.. usually 2 homeruns of coax siamese up to the dish or cable demarcation point. the cat 5 is capable of 4 or 5 lines depending on the number of pairs. color code is white,red,black,yellow,violet,blue,orange,green,brown, slate. white through,violet are the tip colors and blue through slate are the ring colors
