Getting Ready for Prime Time

 refers to an unmarked and repeatable quest in the Fallout 3 add-on Broken Steel.

Scribe Rothchild, when asked how you can (further) help the Brotherhood, requests that you bring him Sensor Modules and old Cameras to help fix Liberty Prime.

Reward
This is only available after completing the quest, Who Dares Wins
 * 100 caps and 25 XP per Camera
 * 75 caps and 10 XP per Sensor Module

Bugs

 * Apparently, there's still a bug on the version for Xbox 360. When you attempt to give Scribe Rothchild the cameras, he will only say that he's glad you brought them. You won't get any caps or XP and the cameras will remain in your inventory. NOTE: This can be fixed by repeatedly offering him the cameras once more and/or waiting during the conversation for Scribe Rothchild to finish speaking.
 * Sometimes you have to wait about 4 seconds after exiting conversation for the camera to be removed and the caps to be added.
 * When having multiple followers and entering the vault where you find Fawkes it causes the other followers to die, but also can make Rothchild vanish from the Citadel.