Well, amazingly, I am still really enjoying Ant & Dec.
They've been on many other shows that were just crap (eg. "Red or Black?"). And they've been on other shows that I kind of liked (eg. "PokerFace"). But they've always been, as I said in my first post here, quite irritatingly just corny and slick and tolerable.
I think they'll be able to look back on this series as the-good-old-days.