The new digital television format has made big changes to the types of antenna that works well. The new Digital TV stations are all UHF while the old channels 2-13 were VHF. The UHF freqs are higher, and the wavelength is by definition shorter. That allows the elements of the antenna to be resonant at a shorter length. No more need for the huge old school antennas.
TV Fool
This is a great website and a solid resource!
Make sure you map the local transmitters, that will help you choose an omnidirectional or unidirectional antenna depending on distance and heading to the transmitters.