What do you think of the new game show 20Q?

If you mean the episode airing on July 18th, the category was "transportation", and the contestant had it narrowed down to some type of automobile. She tried the question, "Does it save lives?", to which she got a "Yes". She tried to ring in, but Mr. Q got it first, and, alas, gave the correct answer of "ambulance".

As for my opinion on the show, it's OK. It just drags out a bit too long. And I think that a new row of the audience should be selected for each question, not each round. Otherwise, someone could buzz in blindly and answer incorrectly twice, but get it on the third try (as happened on the premiere). If you knew you only had one shot at it, you'd want to make the most out of that one shot.