 In the episode "The Tale of Two Springfields" Homer threatens to blow himself  up with the dynamite strapped to his chest. When it doesnt detonate he tells  Bart "Nice wiring Bart" to which Bart responds "Worked on the test corpse".  The original line was "Worked on the test goat". When the FOX version is  played with the closed captioning running, the original line appears in the  text even though what we hear is "corpse". Plus it is plain to see that  Barts mouth movements dont match the word "corpse".