Gotta be my favorite episode of Smallville. I really liked what they did with Dr. Fate, and his costume looked great. Loved how they worked in Checkmate and Amanda Waller. Lois even mentioned an interview she was doing with Michael Holt, the current Mr. Terrific. So much great stuff in the episode it's hard to remember it all!
They did have Black Canary in the painting at the old JSA headquarters. Wonder if she's related to the young Black Canary who's appeared in a couple of episodes.
I hope they bring the JSA back again, and include some of the members we didn't get to see in Justice.