Thank you, Cassavetes, for not being a Quiz Hog! (And that's a cute expression!)

#3 is from Suitable for Framing.

#1 is from "A Matter of Honor"

And as already mentioned, #2, #3, and #4 are from
"Etude in Black," "Suitable For Framing," and "Short Fuse"

Thanks E...but I stole that expression from someone on here!!

Ok..Mr. Leighton Sir, we are hungry for more....no pressure!!!

I'm very impressed...and descriptions as to what part of the episode it was said.

I'm just going to have to start making things a wee bit more difficult. I'm on the case...