Short answers, pulled from the story.
The KGB call sign at 760 AM in San Diego does not derive from the Soviet intelligence agency. The letters were previously used by sister station KLSD 1360 AM from 1928 to 1982, then retired for nearly four decades before iHeartMedia reclaimed them in July 2020 for the former KFMB AM.
KGB switched from conservative talk to a sports format on the 1st of September 2022, two days before it broadcast the San Diego State Aztecs football season opener. iHeartMedia swapped the formats of KGB and sister station KLSD 1360 AM, moving KGB's talk programming to KLSD.
Warren Burnham Worcester, an aircraft designer and engineer from Worcester, Massachusetts, founded KFMB through his Worcester Broadcasting Corporation. The call letters stood for his children: M for daughter Mary and B for son Burnham. Worcester died on the 24th of October 1942 at age 33.
iHeartMedia paid $1.2 million for the AM station when it purchased it from Local Media San Diego. That deal closed on the 17th of March 2020, after Tegna had sold the radio stations to Local Media for $5 million in December 2019.
KGB runs at 5,000 watts during the day and increases to 50,000 watts at night using a directional antenna. The directional pattern is required to protect WJR in Detroit, the dominant Class A station on 760 kHz, while still serving San Diego area listeners after dark.
KGB carries play-by-play for San Diego State Aztecs football and men's basketball, Los Angeles Lakers basketball, San Diego Gulls hockey, and San Diego FC soccer. The station also carries national programming from Fox Sports Radio.