Why don't you just look at the ratings in the right demo for that time slot. If that ain't enough to say what's what, then you ain't gonna get any better or more honest confirmation. Delilah has been sliding for some time. Things were strong enough to prop her up. And, yes, DeLilah has had a rough time, especially since PPM. So it isn't a Mix-exclusive. From all the negative talk about her and Mix on here, it's a surprise there's no dancing in the streets or riots of glee. Premiere didn't pull a thing.
Now, on to what the potential of getting back to the basics and playing more Rupert at night..