Let the hive mind of Engadget get that for you.
"I'm looking for a pair of quality headphones that aren't seemingly made of glass. I'm an avid BMXer which causes me to frequently bash on any type of technology that joins me for my daily riding. I've been through the higher quality headsets in the Skullcandy line as these are supposed to be built for "abuse," which is laughable. I cant wear earbuds or canal buds, as my large ears seem to have a repelling property upon anything that sits in them. Wired or Bluetooth doesn't really matter, but I need something that can hold up to taking a few hits every now and again. I'm trying to keep 'em under $150. Thanks!"
Who was on the main channel (.1). The sub-channel wasn't seen (more than likely) on analog cable, satellite and fiber optic. Maybe not even on cable.
Seems like a limited audience for the sub-channel of OTA with digital tuners and maybe cable.
My local CBS station did this with the US Open a few years ago. Ran daytime trash on the main channel and an HD feed of the first two rounds of the US Open on the sub-channel. I asked some of my friends who like golf if they caught it and they didn't even know what a sub-channel was, much less that it existed on our CBS affiliate.
Obama was on 7.1... McCain was on 7.2... Both flipped back and forth on analog 7...
The 7.2 is typically a weather channel and it is available on the lowest basic cable service in almost every area in the Miami Valley so basically everyone has access to it.