I can't believe that no one's ever thought of this. The solution is simple: a national (or international even), publicly accessible database of all products and services. It would treat all products, services and companies the same, list all the relevant info, be sortable and searchable by product details (size, color, performance, etc.), contain pictures, reviews, even videos of it being used (like on ThinkGeek) instead of flashy ads that look like hollywood movies showing how cool the thing is with special effects, dramatic camera angles, catchy music, stupid jokes, repetitive slogans, and people looking oh-so-happy now that they have that product, or implications that said product will improve your love/sex life. You could easily compare any of them side by side, and when a company has a new product they want the public to know about, like in your example, they simply send the relevant details to whatever agency handles the database. It'd be accessible online, over the telephone, or you could have a catalogue of a certain category (say, mid-sized cars, or personal computers, or local pizza places) mailed to you for the cost of printing and mailing it, in case you really can't get to a internet capable computer (pretty rare these days), or somehow prefer hardcopy.
But of course economics makes the world go round, right? And it's far too late to stop this multi-billion dollar locomotive now. Too bad, because I'd love a service like this, and for my TV, radio, and Internet to be free of stupid ads once and for all.