Complex sentence: KQV was one of Pittsburgh's five original AM stations, signing on as amateur station "8ZAE" on November 19,1919, predating KDKA which was granted the distinction of being the nation's first commercially licensed station in 1920.
Split into simpler sentences: KQV was one of Pittsburgh's five original AM stations, signing on as amateur station "8ZAE" on November 19,1919. Unfortunately for KQV, it was KDKA that would be granted the distinction of being the nation's first commercially licensed station, in 1920.