was it ever got cancelled?
Yes, in 2008. A special finale episode was aired on  September 13, 2009.
King of the Hill
Although ratings remained consistent throughout the 10th, 11th and 12th seasons and had begun to rise in the overall Nielsen ratings (up to the 105th most watched series on television, from 118 in season 8), Fox abruptly announced in 2008 that "King of the Hill" had been cancelled. The cancellation coincided with the announcement that Seth MacFarlane, creator of "Family Guy" and "American Dad!", would be creating a "Family Guy" spin-off called "The Cleveland Show", which would take over "King of the Hill's" time slot.

Hopes to keep the show afloat surfaced as sources indicated that ABC (which was already airing Judge's new animated comedy, "The Goode Family") was interested in securing the rights to the show, but in January 2009, ABC president Steve McPherson said he had "no plans to pick up the animated comedy."

On April 30, 2009, it was announced that Fox ordered at least two more episodes to give the show a finale. The show's 14th season was supposed to air sometime in the 2009–20
parks and rec episode where ron gets a hernia in the second episode of the second season, called "The Stakeout". is this last mentioned a tv series? Yes, called "Parks and Recreation" who is its creator? Greg Daniels and Michael Schur can you name the characters from it? Leslie Knope, Ann Perkins, Tom Haverford and Ron Swanson are some of them. who plays the role of the fourth character? Nick Offerman what is the storyline of the aforementioned second episode of this series? In the episode, Leslie Knope conducts surveillance on a community garden in an attempt to find out who planted marijuana there. what else projects have the former creator worked in? "The Office", "The Simpsons", "King of the Hill" to name a few. what kind of show is this third one? An animated sitcom is it connected to any other series or something like that? The series called "Bless the Harts" takes place in the "King of the Hill" universe and features Mega-Lo-Marts in the script.
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King of the Hill [SEP] Cancellation
Although ratings remained consistent throughout the 10th, 11th and 12th seasons and had begun to rise in the overall Nielsen ratings (up to the 105th most watched series on television, from 118 in season 8), Fox abruptly announced in 2008 that "King of the Hill" had been cancelled. The cancellation coincided with the announcement that Seth MacFarlane, creator of "Family Guy" and "American Dad!", would be creating a "Family Guy" spin-off called "The Cleveland Show", which would take over "King of the Hill's" time slot. Hopes to keep the show afloat surfaced as sources indicated that ABC (which was already airing Judge's new animated comedy, "The Goode Family") was interested in securing the rights to the show, but in January 2009, ABC president Steve McPherson said he had "no plans to pick up the animated comedy." On April 30, 2009, it was announced that Fox ordered at least two more episodes to give the show a finale.