I appreciate everyone's suggestions. I took my cable toner and hooked to the cable from the antenna on the roof. I opened the Antenna Amplifier and isolated the cable coming down from the roof. I then put my toner on the cable I think is feeding the entertainment center coax and found it. I took and connected both of those two cables together and I now have internet. The reason I didn't just hook up down below with WiFi is I have to have a hard-connection for my work computer. I can't use WiFi with it.
I no longer have an antenna to use (it wouldn't go up anyway) so I will have to work on that another day.