I only watched it once - when bill Bailey danced to enter sandman by Metallica (my favourite band)I fast fwd through everything except the dances, there is so much hype now, flashing lights everywhere, somstimes you can't even see the dancers because of the lighting effects projected onto the floor.
Recently they re-showed the first one, it was so much better without all the things mentioned above.
And I agree that it is ridiculous to pretend that the results show is live, when it is recorded just after the main show ends, I just wish they'd be honest about it.