[Veggie Todd]

Off topic, but why is the tv station there KDKA? I thought radio and tv stations east of the Mississippi started with a W.

[rightwingintelligentsia]

Pittsburgh has more than one TV station.

As to this one in particular, it was originally called WDTV, but after a purchase in the 1950s changed its call letters to match KDKA radio, which was the first commercial radio station in the world.

After the sale closed in January 1955, Westinghouse changed WDTV's call letters to KDKA-TV, after Westinghouse's pioneering radio station KDKA (1020 AM).[8] As such, it became one of the few stations east of the Mississippi River with a "K" call sign.

[Steely Tom]

KDKA was the very first commercial radio station, and went operational in 1920.

I think they made up their own call letters. There was no standard at the time.