Just found it an interesting little aspect to the Vault. Especially since, if I recall correctly, the other vaults don't have the special radio. With an obviously robotic voice making the occasional statement, and otherwise playing a lot of instrumental(and swing, from what I've listened to so far) music.
Spoiler
And, also, I have no idea if it's around later, on the quest Trouble on the Homefront.
The main point of the thread was to discuss the radio, but also any other little details you might have missed in Vault 101-or even the game in general. I, for one, missed a lot of them in my aforementioned first game. Where I'd maybe even remember little facts from dialog, but not really pay attention to the facts-to say the least, I was being rather unobservant.