Five months just after its launch, on March 23, 1973, the service aired its very first non-athletics enjoyment distinctive, the Pennsylvania Polka Festival, a 3-hour-very long tunes celebration broadcast from the Allentown Fairgrounds in Allentown, Pennsylvania. Alongside element-size videos and other sorts of authentic programming, HBO has developed primary leisure specials throughout its existence. Time Warner. February 8, 2017.