This was pretty amazing.
100
+6
*3
*75
-50
/25
=952.
In 30 seconds.
But what's the point? It doesn't matter how long the dictionary corner's words are. They're not competing with the contestants. They're just showing longer words that could have been made. I would be surprised if they didn't get ideas from an ear piece.
Russell Howard said once that hanging out with Stephen Fry was "like hanging out with google" but everyone knows he wears an earpiece when he hosts QI. It's pretty common practice.