Episode 2, Level 3: Warp Factor. Duke3D has several Star Trek references, and this video shows but one of them. Shoot a button, go through a secret doorway that opens up, and you'll find the bridge from TNG, complete with Picard's Ready Room. Use his computer to access the Really Ready Room.
Captured with Xfire Video. Duke 3D Atomic Edition from GOG.com with the HRP, eDuke32, and DukePlus. Not that you need of that fancy stuff for Duke3D to be playable, mind you."