S15E07 'Tis the Fifteenth Season
After watching 'Mr. McGrew's Christmas Carol' on TV Homer decides to mend his selfish ways and do good things for the townsfolk as Christmas approaches. Usurped as the nicest guy in Springfield, Ned becomes jealous and the two vie to claim the title. After Lisa, a Buddhist, has told Homer that people do not need presents he goes around stealing them in the manner of the Grinch but is eventually forced to put them back.