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Sioux City, Iowa

KZSR - 102.3 Jack FM

NRG Media's KZSR dropped Hot AC as Star 102.3 for Variety Hits as 102.3 Bob FM on March 31, 2006.

In December 2006, Powell Broadcasting closed on the station; the company took control of KZSR of the station on January 1, 2007.

At 9 a.m. CT on Monday, September 15, 2008, following the station's syndicated morning show (Bob & Sheri), the station went into three hours of stunting with "Pop Goes The Weasel" before relaunching at noon CT as 102.3 Jack FM.

To my knowledge, this was the first time anywhere in the world that a station has switched from Bob FM to Jack FM.

According to the Sioux City Journal, station general manager Dennis Bullock made the announcement about the switch when the stunting ended at noon. That was followed by "Jumpin' Jack Flash" by the Rolling Stones, which was the first song to be played on the station under its new Jack FM identity.

Humorously, a report on revealed that Bullock claimed that Jack obtained the station from Bob in a poker game, which is not the first time that Jack supposedly won a radio station via a game of poker.

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