Four shows in and the trends of the show have not only defined themselves but already become worn.
I don't mean the tepid, background lip-service paid to the sort of stereotypes that set the plebiscite's mind at rest: posh dresses, an orchestra, candles on set for example. Rather, the panel, already having exhausted all constructive comment now play parodies of themselves.
The vacant centre is occupied by Meat Loaf, who shouts (knowing that his hectoring will be edited into effective trailer clips), and Katherine Jenkins who either repeats what has already been said or tells us what we've already seen.
Lewelyn-Bowen also says nothing of any consequence although I must add that he makes more of an effort to contribute with sense and sensitivity. Villazon is still resisting the increasing urge just to throw in the towel (the noise and platitudes of Loaf/Jenkins) by saying things which keep the art - such as there's art - of the process in focus. Actually, he's enjoying himself, which is just fine.
Klass has settled into a position as a hyperbolic emotional buffer between the performer and judgement - Titchmarsh is entrenched as leavening the mood (with jokes which are the throwback stereotypes that ITV had otherwise eased out) ahead of the blandishments that that judgement constitutes.
So, yes, the emptiness of content has ossified into boredom. That's OK though - from here on in, the show is simply about votes, winning and losing. All pretence of learning the art, building on achievement etc. on the part of the contenders is now past. It's now all about personality.