Try the C2V in a temporary setup in the attic in several locations with the antenna aimed about 350 degrees true, 357 magnetic. Add a DB4e with preamp aimed at 4.1. Use an A/B switch to select which antenna needed. An alternative would be to connect the C2V to the TV antenna input and connect the DB4e to a separate tuner that connects to the TV aux input. Another alternative would be to combine both antennas with a custom Tin Lee AC7 combiner for NBC real channel 45.
http://www.tinlee.com/PDF/AC7-custom...kup%20Info.pdf