XEG received its concession on February 21, 1944. In 1950, the advertising time on XEG came under the control of Harold Schwartz of Chicago who also came to represent co-owned XERB-AM near Tijuana/Rosarito, Baja California, the station made famous in the movie American Graffiti. During the mid- and late 1970s, XEG was known for its nighttime English-language Soul/R&B music shows. For 4–6 hours per night, taped transcriptions from KGFJdisc jockeys made specifically for XEG were audible all throughout the Southern, Southwestern and Midwestern US, and in central Canada. In the late 1970s, XEG's powerful nighttime signal attracted several U.S. ministries, including Billy James Hargis. But between programs, commercials occasionally offered suspicious-sounding medicines which promised to "cure cancer" and other illnesses. By 1982, they were known as "The Golden Gospel Giant". The XEG mailing address announced on the air was antiquated: "Post Office Box 28, St. Louis, 66, Missouri." This was more than a decade after ZIP codes were introduced across the U.S. As of November 2014, QSL cards are still served at this address During the mid- and late 1970s, XEG was known for its nighttime English-language Soul/R&B music shows. For 4–6 hours per night, taped transcriptions from KGFJ disc jockeys made specifically for XEG were audible all throughout the Southern, Southwestern and Midwestern US, and in central Canada. The station eventually became a reporter to several trade publications because of its influence. In the late 1970s, XEG's powerful nighttime signal attracted several U.S. ministries, including Billy James Hargis. But between programs, commercials occasionally offered suspicious-sounding medicines which promised to "cure cancer" and other illnesses. By 1982, they were known as "The Golden Gospel Giant". The XEG mailing address announced on the air was antiquated: "Post Office Box 28, St. Louis, 66, Missouri." This was more than a decade after ZIP codes were introduced across the U.S. As of November, 2014, QSL cards are still served at this address
