[good idea at the time]

I wouldn't mind seeing Gollum on "Who Wants to Be a Millionare?"

*Is it sure, precious, is that the nice human's final answer? GOLLUM! GOLLUM! If it gets it rights it wins the money, yes, it does, but not the precious -- GOLLUM!-- no, precious, the precious is mine, all mine! GOLLUM!....Ah, tricksy human, you got it right!*

Gollum, Grima, or Saruman might also make an excellent host for "Mole".