Check their website. We were there at Thanksgiving and reservations at "normal" dining hours were not available until January,, otherwise as folks said, get in line at 4pm for a chance to get in without reservations.
Reservations can be weeks out. Go at 4:00 on Sunday for first come, first serve seating.
On a Saturday night? You probably want to make a reservation if you can. They do take walk-ins, but on a weekend it can be a long wait.
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