Did you see this:
WPVN TV 24.6 Launches Local Korean Religious Broadcaster MC-TV May 1
Well, how's that for channel efficiency? These guys come out of the weeds from essentially nothing, put up 4 subchannels and then add in a 5th. I hope this is an example of the opportunity out there for piggybacking/leasing... and they have an omni-directional signal that covers most of the metro area.
WDCI, W25CN, WCHU, WESV are...