Does general admission have seating?

Last show I went to it was first come first serve with seating.

Yes. But with some shows there's standing room. I recommend always getting tickets for seats.

Seating is available on a first come, first serve basis. Doors typically open 1.5 hours before the attraction. If you are looking for a better seat, I'd recommend getting there at least an hour before the big-name performances. If you are ok with ANY seat, then 30-45 min.

No. General admission mostly stating room..