The WHOO calls were used on AM 990 in Orlando, which is now WTLN, from 1947 to 1987 and then again from 1988 to 2001. AM 1080 began operations in 1965 as 5,000-watt daytimer, WFIV, "the mighty five", with a Country format, with a brief stint in the ’90s as Big-band. The Country format continued until 1995, when WFIV switched to a Spanish popular music format as "Radio Exitos." WFIV then went to a Christian talk format as "Genesis 1080" in 2000. The following year, the WHOO calls moved to 1080 from 990, along with AM 990's adult standards music format, followed by a change to the current sports format in 2002. In 2008, after rival sports station WQTM changed formats, WHOO began calling itself "The Only Game in Town". It picked up the first two hours of The Jim Rome Show on January 8, and took the third hour of the show beginning on April 25, the day of the Jim RomeSmack-Off. Prior to picking up Jim Rome, the station carried all three hours of Colin Cowherd and Tirico and Van Pelt. On January 21, Jerry O'Neill, formerly a stalwart on WQTM, joined WHOO. He abruptly quit Clear Channel Orlando a week after moving from WQTM to 540 WFLA. He would co-host the afternoon show with Brady Ackerman until January 12, 2009, when Ackerman quit the station in order to purchase two radio stations: WGGG in Gainesville and WMOP in Ocala, both sister ESPN Radio stations. Also on January 12, WHOO ditched its original moniker of "Orlando's ESPN" in favor of "1080 the Team". After Ackerman left, show producer Brian Fritz briefly filled in as O'Neill's co-host. On February 8, 2009, Mike Tuck, who co-hosted with Jerry O'Neill on WQTM and 540 WFLA before O'Neill left, jumped to WHOO and replaced Brady Ackerman on their afternoon sports show. The show was now titled: Tuck & O'Neill. Ironically, WQTM re-branded again as "740 the Game" and changed call letters to WYGM, returning to the sports format. Genesis Communications announced on June 22, 2012, that WHOO would drop ESPN Radio on October 1, 2012, in favor of NBC Sports Radio. The change was executed as scheduled. The station retained Tuck & O'Neill, extending it by one hour to end at 7pm instead of 6pm. It also picked up The Dan Patrick Show for the 9am-Noon hour, as well as local morning and noontime shows from Tampa Bay affiliate WHBO featuring David Baumann and Whitney Johnson, respectively. WHBO also transitioned to NBC Sports Radio. As of 2017, WHOO effectively simulcasted WHBO under the "Sports Talk Florida" umbrella. That past week, it was “sold” and switched to Haitian language programing, but returned to sports later on. Genesis Communications announced that it would sell WHOO and WAMT to Immaculate Heart Media. The sale was completed sometime in August 2018. In late 2018-early 2019, WHOO and its sister station WAMT changed their formats from sports to Catholic talk, branded as "Relevant Radio".