Okay, first things first: can you actually get a rare/legendary dweller from the radio room?
First I built a 2-wide radio room with high-charisma dwellers working it and average dwellers were arriving nicely enough, okay. But, if I want rare/legendary dwellers, can I expect them to show up from broadcasting?
If I build a bigger radio room, will that attract rare dwellers? (I don't really see the point in manning a larger room if all it does is tweak the timer... am I wrong?)