 In episode 49, when Caboose is listening to Churchs transmission  from the past the "computer" that he was using had a Windows 9x  (95/98/ME) style Blue Screen of Death. This is actually in the Halo  2 game, when the computer is activated to open a door, it says: "WAC  A total FU exception has occured at your location. All system  functionality will be terminated. Press any key to power cycle the  system. If system does not restart; scream at top of lungs and pound  on keypad. If you need to talk to a programmer press any other key.  Press any key to continue."