Funny you should mention it.

 Accidentally apposite is still an improvement.

Does he mean Arnold Ziffel from Green Acres?

Cimabue, Cimabue.

 He's a bold, adventurin' man.

His blade was tempera.

Words in words.

 It's as if someone planned it that way.

Do you find a denizen in a den?

Between you and me.

 The Bench could be bugged, you know.

And there is always a parabolic microphone.

Unanimous HoF inductee.

 He got all the first place votes on all the ballots.

No one came in second.

Opportunity knocks.

 Opportunity isn't lost. It's still on Mars.

It just isn't working any longer.

The first Thanksgiving.

 No good deed ever goes unpunished.

No take backs.