I have to admit that I had to look up the reference to Dallas, having never seen an episode. I remember a friend from Chicago saying that he liked to go out on Wednesday nights (I think that's when it was on) because the streets were empty then.
Congrats, mattrom. I’m with Buddy that your clue was over my head though. The depth of your knowledge never ceases to amaze. Thanks for quite the challenge, Aristophanes.