 Programming on the flagship Discovery Channel in the U.S. is primarily focused on reality television series, such as speculative investigation (with shows such as "MythBusters", "Unsolved History", and "Best Evidence"), automobiles, and occupations (such as "Dirty Jobs" and "Deadliest Catch").A popular annual feature on the channel is Shark Week, which airs on Discovery during the summer months.Discovery has also featured documentaries specifically aimed at families and younger audiences.