HBO has successfully transitioned from being solely dependent on advertising revenue as a cable network to establishing itself as a premium content brand funded by subscriber fees. This allowed HBO to produce riskier, higher quality shows defined by their strong narratives, complex characters, social commentary and explicit content. HBO pioneered innovative marketing campaigns like those for True Blood that generated buzz and engaged fans online to establish brand loyalty. Moving forward, HBO is exploring new revenue opportunities like digital product placement and leveraging celebrities and second screens to enhance viewer engagement.