Simpsons costumed characters, participate in the ceremonial lighting of the Empire State Building in New York City to mark the 30th season of Fox's "The Simpsons," December 17, 2018. After being a short sketch on "The Tracy Ullman Show," Fox turned the animated program into a weekly half-hour program, with the first episode airing December 17, 1989, making Monday's ceremony the 29th anniversary of the show's launch [Photo: VCG]"

Simpsons costumed characters, participate in the ceremonial lighting of the Empire State Building in New York City to mark the 30th season of Fox's "The Simpsons," December 17, 2018. After being a short sketch on "The Tracy Ullman Show," Fox turned the animated program into a weekly half-hour program, with the first episode airing December 17, 1989, making Monday's ceremony the 29th anniversary of the show's launch [Photo: VCG]"

Simpsons costumed characters, participate in the ceremonial lighting of the Empire State Building in New York City to mark the 30th season of Fox's "The Simpsons," December 17, 2018. After being a short sketch on "The Tracy Ullman Show," Fox turned the animated program into a weekly half-hour program, with the first episode airing December 17, 1989, making Monday's ceremony the 29th anniversary of the show's launch [Photo: VCG]"

Nancy Cartwright, Pamela Hayden, Stephanie Gillis and Mike Scully, along with costumed characters, participate in the ceremonial lighting of the Empire State Building as they attend the Empire State Building Celebration of the 30th Anniversary of FOX's "The Simpsons" on December 17, 2018 in New York City. [Photo: VCG]"