HBO has been in operation since November 8, 1972.
 subscriber base, HBO distributes its programming content in at least 151 countries worldwide to, as of 2018, an estimated 140 million cumulative subscribers
)In March 1995, HBO signed a ten-year deal with the then-upstart DreamWorks SKG valued at between $600 million and $1 billion, depending on the total output of films and generated revenue during the contract, covering the studio's tentative releases between January 1996 and December 2006

