I wouldn't think they'd have a wait at 4, but it depends on how many people are in your party and if there's an event going on in the city. To be on the safe side, it wouldn't hurt to call ahead for a reservation.
I've gone in at 4 and gotten seated right away
I would call and make a reservation. They get pretty busy on the weekend, especially if OSU has events going on.
Should not be too lonh if any wait at all
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