[sbikes]

I'm new to this forum and after doing some research i'd like to install an antenna in my attic. Before buying one I wanted to see if anyone had any suggestions for my location.

I live in Renton WA, TV fool shows the true azmuth for most stations around 320 deg & ranging from 8 - 22 miles (toward Seattle). as mentioned above I'm looking for an attic installation system and have an asphalt shingled roof.
Our house is pre-wired and the cables are going through a four way spliter, I understand this can effect the signal but i'm not sure by how much or what it means in choosing an antenna.

Thanks in advance for any information!