With all this being said, it is still best if a dedicated line is run for incoming OTA signals. An uncut line is preferred. But, if that is too difficult, try a split and see what happens. A pre-amp can probably help here. Bottom line, as long as you are getting 95-100 on a signal strength meter, you should be ok. Whether the meter reads 95 or 100, the image quality on the dsiplay will appear the same.