All these people from Hartford! Fortuately, I have lived in the area for many years. A DB-8 is NOT the way to go! It is a poor choice in an attic, as it is subject to multipath inerference, and it has too narrow bandwith to see the Avon Mtn and Rattlesnake Mountain transmitters without using a rotator. Also, it sucks on VHF, and WTNH-ABC is on VHF channel 10, and WWLP from Springfield is on channel 11. You have stations coming from 4 different directions.
What to do? Unless you are willing to use a high-gain all-channel antenna antenna on a rotator, you're not going to see the Springfield channels reliably. If you can settle for the Hartford- New Haven stations, I would use a Winegard HD-4400 aimed West-North West of your location to see WFSB from Avon Mountain and also to see NBC, CW ,PBS and FOX from Rattlesnake Mountain, I would join the two antennas using a Pico-Macom UVSJ and use a separate
Winegard YA-6713 aimed south to pick up WTNH