The Osbourne lights is a display of holiday themed lights that was originally on someones personally property (The Osbourne Family - forget location) and they built it up year after year by adding more and more lights and scenes to their display.
After numerous years of this the local community had complained because people were traveling miles and miles to see the display and it was creating havoc for the entire community with the thousands of people coming from all over to see the display. They were ordered by a local government to tone it down but the family did not want to since they had put so much time and money into the display that they wanted to keep it intact so they started seeking locations to move the display to and it ended up being moved to WDW - Disney's MGM to be specific.
Each holiday season Disney sets up the display at MGM for all to see as the Osbourne's had done and was their only request, free of charge. If you are ever there during the holiday season (Day after Thanksgiving through January1) I would recommend going to MGM to see it. It is well worth it and a sight to behold. If and when you do, try to imagine this at someone residence and you will understand why the neighbors could not deal with it any longer, because it is truly a sight to see!!!