HBO World Championship Boxing influx of streaming options and issues with promoters, along with declining ratings and loss of interest in the sport among HBO's subscribers, made continued carriage of the sport untenable. HBO's long-term move to upscale dramatic programming and an ownership transfer to AT&T's WarnerMedia also played a role in the decision, with an HBO executive commenting that "HBO is not a sports network." Famous matches broadcast on "World Championship Boxing" include: The Rumble in the Jungle, in which Muhammad Ali regained the world heavyweight title from George Foreman in Kinshasa, Zaire in 1974; Thrilla in Manila, the final encounter between Muhammad
George Foreman vs. Ken Norton winning the bout by first-round knockout. For his second defense, Foreman was matched up against Ken Norton for a March 1974 bout held in Caracas, the capital and largest city in Venezuela. Norton was coming off two successive fights against Muhammad Ali in 1973, winning the first fight in March by split decision (famously breaking Ali's jaw in the process), and then narrowly losing the second by another split decision in September. Norton's impressive performances against Ali made him one of the top heavyweight contenders for Foreman's titles, but the future hall-of-famer was installed as a 3–1 underdog against the