Floor 494

From Tardis Wiki, the free Doctor Who reference

Floor 494 was one of the floors on Satellite Five. In 200,100, the Ninth Doctor blocked entry to Floors 495-500, so the Daleks could only prevent his delta wave by entering from this level. When the Daleks entered the Station, a team of 5 humans including staff and the remaining guards attempted to use internal lasers to battle the Daleks. When these failed, they shot bastic bullets until all humans on this floor were killed having discovered that the bullets didn't work. (TV: The Parting of the Ways)