To be honest I've never really been into it. I've had it on in the background a few times, but never got into it.
I disagree with X-Factor to a degree, the auditions I think is lovely entertainment, people thinking they can sing when plainly they can't. Then it goes to the live shows and they're all 'good' so there's no point.
American Inventor... I've heard of it but can't recall it at present, is that like a Yankyland Dragon's Den clone?