Andi does have the Saturday graveyard slot though. People who are into the music played on his show are probably out and can't listen to his show so it's hard to tell whether his ratings would increase or decrease if his show moved to an earlier time slot.
Oh, ratings would surely rise if his show was played out earlier in the evening.
The assumption I was questioning, though, was that the show was a "ratings hit". It's the kind of statement people make on Digital Spy when all they really mean it's a show that they and their mates like!