So I've got my DB4e set-up in the attic.....I successfully got WNLO out of Buffalo, but I'm having a fair bit of trouble picking up WUTV (FOX) or any of the other American networks.
WUTV is a lot weaker than WNLO; it will be very difficult for you to pick up. The tvfool FAQ says for the color in the report:
An attic-mounted antenna is probably needed to pick up channels at this level and above
A roof-mounted antenna is probably needed to pick up channels at this level and above
These channels are very weak and will most likely require extreme measures to try and pick them up
WUTV is in the grey.
WUTV is on RF channel (real) 14. Most UHF antennas have the lowest gain at the low end of the UHF band. As chinadog mentioned, the DB8E is your last resort, because Antennas Direct redesigned the DB4E and the DB8E when UHF was limited to 14 to 51, giving them a little more gain for 14. It is not known if the DB8E would give you enough extra gain to make a difference.
You are on the fringe of coverage for WUTV. Note that only 55kW out of 1000kW ERP is sent your way because of the WUTV directional antenna as a result of the non-interference agreement with Canada.
The FCC Longley-Rice coverage shows no signal for your area:
Link to FCC map:
The only other thing I can think of is to tilt the antenna to aim above the horizontal to catch the signals coming down from the peak. This would be a custom mod for a bowtie antenna and might not be as effective in the attic as outside. The 91XG and HDB91X have a tilt feature, but probably have less gain for 14.
Have you tried different locations in the attic for the antenna to find a hot spot for the signal?
WUTV will be moving to channel 36 after repack is settled; that might help as far as antenna gain is concerned:
They have filed an application for channel 36 that shows a little less power with Elliptical Polarization, which might help.
Moving the antenna outside would help, but might not guarantee 100% reliable reception.