KSBJ Houston programs the enormously good NGEN format on HD-2. Forget their primary signal, I listen to NGEN exclusively! It is what Christian radio SHOULD be: ngenradio.com
WPOZ Orlando does something similar, except they separate Christian hip-hop and rock into two formats. They also have a gospel HD channel, so I guess they are up to HD-4 now.
Both stations also operate translators in their market, so the vast majority of people who don't have HD radios can listen to the HD-channels. It is exciting for us in Houston, because it sounds like a major class C non-commercial is going under, and maybe it will end up NGEN!!!!