What made me think of this is because the last week I noticed WRFF's HD-2 has kinda switched to all Hard Rock, very little Cutting Edge Alternative like they were, they sound very close to MMR and YSP's selection, but only broader. My question is can WRFF use this to their advantage, meaning, if their HD-2 can pull listeners from MMR and YSP, it can help them to rate higher, same with other formats, a station can go after another one, on their HD, to boose their main rated signal....just my observations....
I'm reading your note two different ways:
1. The HD channels are encoded seperately for Arbitron. WRFF-HD2 would not add to the ratings of the main WRFF channel. In the ratings, WRFF-FM would be listed with, say, a 4.0 6+, and WRFF-HD2 would be listed with a 0.1 6+. WRFF, as a whole, would not get a 4.1.
2. HD-2s and HD-3s are no where close to being able to pull large (or even small) chunks of listeners away from main FM signals, programming-wise.