That got your attention didn't it? Now notice the power is 1/2 MW and not 1/2 mW. MW is megawatt and the station is the former WLW 500,000 Watt "Nation's Station".
There are many on line historical stories about this station but here is one which I had not seen before and it is a fairly interesting read, especially since it was published while the station was still operating at 500,000 Watts. It details some of the technical aspects of the station as well as other information about studios, etc. I found this at the Nostalgia Air website which is nice to visit if you are interested in old time radio equipment.
I used to drive by the transmitter site every work day going to and from work. The main tower is still there and is still in service as is the transmitter building and the "engineer's home". The cooling pond is also there but it is not used.
There were reports of the station's audio coming from fences and teeth fillings so perhaps these and other factors resulted in the station's power being reduced to 50 kW which is it's current power.
Hope you enjoy the piece of history.