Watch The Simpsons Season 29 Episode 4 online via TV Fanatic with over 6 options to watch the The Simpsons S29E4 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, Google Play, and Disney+.
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On The Simpsons Season 29 Episode 4, Maggie becomes possessed by a demon, Lisa discovers a creepy yet perfect version of her family in an alternate universe.