Public television is commercial free as well, however, there usually is a stop set prior to each program that informs us as to who is making all this possible. This really isn't a bad idea. How many times have you heard a spot cluster of 4 spots and two are car dealers. How does the listener retain all that info, if in fact, the listener hasn't punched another button on the radio. Possibly: "This 30 minute music sweep from your friends at Castriota Chevrolet where you can drive a new Impala for 199 a month". 3 songs into the set: "30 minutes of commercial free music from your friends at Castriota Chevrolet, drive a little and save alot". Just a thought.