OK, I get how rebroadcasting without paying for the original material is a violation and harmful to the broadcaster (assuming changes are made or advertising added), but if the broadcast signal is simply being captured and repeated via the Internet (inclusive of commercials), I'm trying to identify any damage to the broadcaster.
Suppose you buy some commercial time on your local TV station, and you pay pretty good chunk of change, since you go after a certain demographic.. and all of your shops are in a 50-75 mile area.. plus, your commercials are all in prime time. Joe Six pack half way across the county hooked up to Aereo is not ripping you off as much as Aereo is they are stealing the program your sponsoring! Theft of Service.