I generally arrive 20 minutes before Showtime and that gives me plenty of time to be seated and get my order in before the show begins.
If you wanted to get the party started early, the green room has a bar and is serving before, during, and after the show. Because they have seats assigned already, it doesnt matter so much how early you get there as you will still get to the same spot eventually as long as you get there before the show. If you dont like waiting in lines, I would suggest getting to the green room early and waiting by the curtain. Another note: the green room gets a little tight right before the show as everyone is arriving.
You have assigned seats so you can show up whenever. They do have a pre- show green rooom that opens up before each show so you can mix, mingle, and socalize if you want to. Otherwise, 20 minutes before show is good to get seated and get a drink before the show.
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