An early version of the pilot episode originally aired months prior to the launch of Adult Swim on Cartoon Network unannounced on December 30, 2000.
It later made its official debut on Adult Swim on September 2, 2001 (the same night the network launched) and ended on July 22, 2007, with a total of 39 episodes, over the course of 4 seasons.
Quick Draw McGraw attempts to bring in the Dalton Gang (who are wanted for card cheating, cattle rustling, and running a crystal meth lab).
In the middle of the first session of the trial, Mentok the Mindtaker remembers that he is to attend his nephew's birthday party and takes Harvey and Quick Draw with him.
After a trial filled with the general topics involved with weapon rights, Hiram Mightor spits out a miniature version of Yngwie Malmsteen (who is seen later sitting with The Guitar Lobby).
There is a celebration for Harvey winning the case and Phil losing the election, at which Peanut fires off Quick Draw's pistol at random and watches as it ricochets around the office.
Harvey is caught by neanderthal cave men who believe that he is the "pink manbird" (because of the shower terry) their oracle foretold would bring pestilence and drought.
Phil finds out about the portal in the hot tub and brings Peanut, Avenger, and a Star Trek character parody to the past.
Phil takes advantage of the limitless resources and lack of economy to start up several business ventures including theme parks and dinosaur hunting.
Notes: The school that Cavey Junior is attending refuses to teach evolution, claiming that it is just a myth, so his father (Captain Caveman) takes legal action, through Harvey Birdman.
The next day at court, Mentok messes with a chiseler who tries to put up a stone tablet of the Ten Commandments in front of the courthouse, and Peanut tells Harvey to call Magilla Gorilla to the stand to prove evolution (a talking ape) but the jury is unsatisfied.
Much of the time is spent on Phil's youth, where he is pictured as constantly engaging in activities hazardous to his left eye (though he does not actually lose it until he becomes an office worker).
Notes: Peter Potamus consumes radioactive pellets that transform him into "the creature", turning him green and tripling his waist size.
After the end credits, a junkyard worker is "compacting, not cremating" what one could presume to be Reducto's remains, evidenced by wreaths and attended by Inch High.
After thinking that Harvey has retried every case within the limited amount of time Mentok gives him, Birdgirl spots another person that hasn't been tried yet.
Trivia Harvey Birdman is appointed Assistant Attorney General and attempts to have now-President Phil Ken Sebben removed from office on his request.