WISR (680 AM) is a commercial radio station licensed to Butler, Pennsylvania. The station was the first to go on the air in Butler County, doing so on September 26, 1941. The station was the last to be granted a broadcast license before the FCC halted the licensing of any additional stations until after World War II. It has always broadcast on AM 680 with a maximum power output of 250 Watts, non-directional. WISR had operated as a daytime-only station until it was granted limited nighttime power in the late 1980s. The station has a construction permit for an FM translator (W298CW) that would allow it to operate at 107.5 mHz. The permit was granted January 25, 2018. The FM translator officially signed on air September 28, 2021, making WISR available on both the AM and FM bands, and was licensed effective October 15, 2021. After more than two decades of ownership under the Butler County Radio Network, WISR was sold to Pittsburgh Radio Partners in September 2022. After less than two months, St. Barnabas Broadcasting announced that it would acquire WISR and its affilate stations from Pittsburgh Radio Partners. History First in Butler County: a family affair WISR was the brainchild of local businessman David Rosenblum, who felt that the community could use a local radio station to promote its community and events. Naming the station after his father, Isaac Samuel Rosenblum, David Rosenblum managed the station and sold airtime, with his wife Georgia keeping the books. The couple continued to operate the radio station until their deaths in the early 1950s. It was at that time that the Rosenblums' son Joel, assumed the operations of WISR. Joel Rosenblum's brother Ray later owned and managed a station of his own some 25 miles to the east, known as AM 1380 WACB (now WKFO) Kittanning. WISR, like most other small-town stations of its ilk, was a mixture of both programs and music. A popular program was a buy-sell-trade program called 'The Phone Party', hosted by advertising sales representative Guy Travaglio, who left the station in the 1990s to pursue a career in politics. Midday on-air personality Pat Parker took over the show, which is now heard on Saturdays starting after the 10am CBS News and continuing until 11am. Another popular program was 'The Larry Berg Show', hosted by another advertising sales rep, Larry Berg, who joined WISR after completing a