Strictly observational, I think he has a list of killer clues, sometimes. Without spoiling those who are on DVR backlog, he once gave the absolute perfect clue that 99 times out of 100 would get the box.
For "things that are framed", he gave 2 other clues and then "Roger Rabbit"
However, it was the third clue he gave, and so matter-of-factly. If it had come to my mind after two other clues (or if I was really trying to act the fact I just thought of it), you would have seen some look of epiphany from me.