Usually these clip show episodes are embarrassingly weak. Most long running sitcoms have them. This is a gem because Homer is such a fascinating character. When Homer nearly dies from an exploding beer can, shaken up by Bart, his doctor asks the family how he got all these lesions on his body. The explanations are scenes of abuse in previous episodes. They are nicely choreographed in the plot, with additional events taking place. Oh, somewhere along the way, Homer loses 5 percent of his brain.
