You should be able to pick up these stations with a small indoor antenna:
WSRE-DT 23.1 PBS RF Channel: 31
WPAN-DT 40.1 IND RF Channel: 40
WPMI-DT 15.1 NBC RF Channel: 15
WMPV-DT 21.1 TBN RF Channel: 20
WJTC-DT 44.1 IND RF Channel: 45
WEAR-DT 3.1 ABC RF Channel: 17
WFGX-DT 35.1 MNT RF Channel: 50
Your CBS, Fox, and CW stations are closer to Mobile and may require a directional outdoor antenna.
Your only VHF stations are:
WALA-DT 10.1 FOX RF Channel: 9
WBQP-CD 12.1 A1 RF Channel: 12
Many HDTV antennas focus on the UHF range because before the digital transition in 2009, all HD channels were UHF. The loop part of traditional rabbit ear antannas and the many different grid antennas you see today capture UHF signal based on how much signal passes through the loop/grid (the very front of traditional outdoor antennas - usually many elements of the same length pics up UHF in a different way). The long straigt antennas on the traditional rabbit ears or varied lenght elemets of traditional outdoor antenna pick up VHF - very similar to FM antennas because FM radio is in the middle of the VHF TV spectrum (audio on analog TV channel 6 IS FM 87.7). Because the VHF wavelengths are longer, you need larger antenna elements to capture them. Digital VHF signals also seem to have more difficulty penetrating structures.
Because the ditital TV allocations today use less spectrum than TV allocations prior to the digital transition, antennas designed after 2009 should provide better reception for their size. Particularly, the longest VHF elements are tuned to the lowest channels and channels 2-6 are not used by full-power digital broadcasters (some low power stations still use these channels) and the traditional UHF elements are most effective for the highest channel they are designed to pick up and the transition eliminated the highest UHF channels (52-69). The FCC continues to make an effort to pack TV signals closer together to free more upper UHF channels and sell that spectrum to mobile broadband providers.
