Longest cable run for FTA
I don't have exact figures, but I worked on one house where the dish was mounted at one end, then the cable ran all the way to the other end, and down one floor, into the circuit box area and through a multi-switch. From there the multiswitch outputs ran back across the house into various rooms.
On the last room in the basement, at the far end of the house, the signal strength just dropped considerably, and I was only able to get certain channels. In another room near by, signal strength was still okay. So I guess we had reached a limit and after that the strength just dropped off fairly quickly.
I would guess the total length was between 100 and 200 feet.