I would forego the power line connection for the LAN. WiFi or plain old Cat 5 works better.
As for OTA, you have WHBF for CBS, but they are way down on RF 4, so you need an old-style big wide antenna for that. You may be able to get their low-power translator on RF 26, if so then you only need a much smaller UHF antenna. To find out, go to www.tvfool.com and enter the address; it will show you how strong each station is at that location.
Most of the QC transmitters are located SE of Bettendorf in Aledo, Illinois, but if your location is on high ground, you may be able to get stations from the Cedar Rapids market. Again, TV Fool will show you if this is possible.
As for the antenna cabling, use only RG6 cable, prefferably with the connectors pre-installed at the factory. Keep the cable run from the antenna to the TVs as short as possible, as long cable runs can weaken the signals.
And one more thing- if you are going up on the roof, please be careful.
As for OTA, you have WHBF for CBS, but they are way down on RF 4, so you need an old-style big wide antenna for that. You may be able to get their low-power translator on RF 26, if so then you only need a much smaller UHF antenna. To find out, go to www.tvfool.com and enter the address; it will show you how strong each station is at that location.
Most of the QC transmitters are located SE of Bettendorf in Aledo, Illinois, but if your location is on high ground, you may be able to get stations from the Cedar Rapids market. Again, TV Fool will show you if this is possible.
As for the antenna cabling, use only RG6 cable, prefferably with the connectors pre-installed at the factory. Keep the cable run from the antenna to the TVs as short as possible, as long cable runs can weaken the signals.
And one more thing- if you are going up on the roof, please be careful.