Launched: August 1, 1980
June 2018 - AT&T acquired HBO as the company buyed Time Warner (and rename it to WarnerMedia).
April 2022 - Discovery buys WarnerMedia and creates Warner Bros. Discovery.
List of channels:
Cinemax
MoreMax
5StarMax
ActionMax
MovieMax
OuterMax
ThrillerMax
Cinemáx