Shark Week is an annual week-long programming block on the Discovery Channel focusing on shark-themed programming. It originally premiered on July 17, 1988. The block is featured annually in the summer, and was originally devoted to conservation efforts and correcting misconceptions about sharks. Over time, it grew in popularity and became a hit on the Discovery Channel. Since 2010, it has been the longest-running cable television programming event in history. The block is owned by Warner Bros. Discovery, and is broadcast in over 72 countries. Shark Week is promoted by the Discovery Channel heavily via social networks such as Facebook and X. Episodes are also available for purchase on services such as Google Play/YouTube, Amazon Prime, and Apple TV. Some episodes of the shows on Shark Week are free on the over-the-top streaming services HBO Max, Hulu, and discovery+.