My 50" came from VA with a rather large, unmarked box held over the others with a metal band. After cutting the band that lifts off. The next box is marked completely, and again lifts off after removing these plastic tabs that link the boxes together. The interior box comes off the base the same way. TV sets in styrofoam and in covered in plastic.
You'll have no problem getting in through the door for the same reason you bought it -- it's thin.
My 42# Panny purchased 2 years ago came on a pallet. I guess they are getting away from that. Anyway, TV came through in perfect same despite dings in the outboxes.