Viacom is a large media conglomerate that owns various television stations, radio stations, film studios, and publishing companies. This wide range of properties allows Viacom to promote its films across multiple platforms, increasing publicity and opportunities for advertising. Partnering with complementary companies in symbiotic relationships, like Hasbro's deal for the Transformers films, further expands the potential for cross-promotion among related brands. As a major multi-media conglomerate, Viacom benefits from horizontal integration and cross-media convergence to publicize its content.