Here in the U.S. a federal law went into effect a few weeks ago that commercials during television programming couldn't be louder than the program itself. If a TV station is in violation of this rule, the citizen can go to the FCC's website and register a complaint. After that, it's anybody's guess whether the FCC takes these complaints seriously - but then again, it is federal law. At least now a citizen has some legal redress against this specific form of noise pollution.