Ok. On your antenna mast, I would combine both the above antennas with a Antennas Direct EU385CF combiner. This takes two antennas and combines both their signals into one coax.
You see by the image below each antenna has a short piece of coax that will go from the antenna to this box. Then from the box one lead goes down into your home.
When you split a TV signal to more than two TVs you begin to have to be mindful of signal losses. Every time you split a TV signal you are weakening the signal. People really start to notice it if, for example, you want 4 TVs fed off the antenna but aren't keeping track of signal loss. Some TVs might see a signal while others don't. This is because they aren't adding some amplification to offset this.
This puts you in a situation to where I'd suggest a channel master 3414 4 port distribution amp. This product offsets some of the losses associated with splitting your signal 3/4 ways. This would be installed in your home at the point where you split your single coax to the 3 different TVs.
CBS WSEE from Erie is on the very weak side. If your results jive with this report it should be reliable. Are you going to be dealing with any obstructions like trees, buildings or anything else in the antennas path?
SS