Two Tales of Three TVs

Have you watched a TV ad promoting a TV by showing two TVs on your TV? I am fascinated that there are so many of them around. It is the ultimate tribute to stupid.

In this ad, they show a generic TV with bad picture and then they show the advertised TV with a great picture. If I am able to see clear picture in the second example and be fascinated by it, it automatically means my current TV is good, since it can show that clarity to me. So why would I need to buy their TV?

Or, if my current TV itself has bad picture, then I will never get fascinated by the 'clarity' of second picture. So why would I give a damn about buy their TV?

Their wonderful TV will look only as good as my current TV already is :P

I am having hard time to decide. Are the advertisers stupid? Is the audience stupid? Or is it stupidity that makes the world go round? :P