Assertion: homer | /r/HasProperty | shown having colonoscopy
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text: Homer has appeared, voiced by Castellaneta, in several other television shows, including the sixth season of American Idol where he opened the show; The Tonight Show with Jay Leno where he performed a special animated opening monologue for the July 24, 2007, edition; and the 2008 fundraising television special Stand Up to Cancer where he was shown having a colonoscopy.