Stage Door Sally said: "Last week Jeopardy! honored Andrew Lloyd Webber. This week it gives a tip of the hat to Stephen Sondheim.
The categories in the first round of tonight's show are all names of Sondheim musicals (the clues aren't related):
Into The Woods, Company, A Little Night Music, Passion, Merrily We Roll Along"
I wonder how many of Jeopardy's millions of viewers 'got it.' There was no reference to it or explanation by Mayim.
A slight amendment to the above post: one clue in the category "A Little Night Music' was indeed show-related.