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
Joe Frazier vs. George Foreman defending that title four times before knocking out Jimmy Ellis to claim the vacant WBA and WBC titles in 1970 that had been stripped from Muhammad Ali. Frazier's most notable defense would come against Ali himself in what was billed as the "Fight of the Century." After defeating Ali by unanimous decision, Frazier captured "The Ring" heavyweight title and became recognized as the lineal champion. In between his first Ali fight and his bout with Foreman, Frazier successfully defended his title twice against fringe contenders Terry Daniels and Ron Stander. Following his knockout of Stander, Ali attempted to gain a