King of the Hill has worked hard to be one of the most celebrated animated series of all time. It ran for over a decade and produced more than 250 episodes, which many consider not to show any decline in quality over the course of the show's 13-season run. King of the Hill made a name for itself with its authentic "slice of life" storytelling that finds humor in grounded character moments and relationships. Each character brings something original to the series, but Dale Gribble is frequently cited as one of the show's most popular characters between his conspiracy theories, extermination business, and his genuine love for his family.
Source：https://www.cbr.com/king-of-the-hill-johnny-hardwick-episodes/
