If you will like to receive , WHBF-TV 4 CBS and sub channel
http://myretrotv.com . Install a Winegard YA6260 low band antenna with a Winegard AP3700 preamp , above the roof aimed at about 188 degree magnetic compass.
The two antennas there preamplifiers will be 2 separate systems and no part of the 2 separate systems will be connected together. Do Not connect to gether on to one coax.
A coax from each antenna and preamp will go to the location of the the tv and will be connected to a ,
http://www.mcmelectronics.com , part #: 32-4425 or
http://www.radioshack.com , part #: 15-1968 , remote control A/B antenna switch and the output of the AB switch will be connected to the tv.