> It premiered on November 16, 1998, as part of the show's structural change and originally ran fifteen minutes at the end of each episode until 2009, but was t

> It premiered on November 16, 1998, as part of the show's structural change and originally ran fifteen minutes at the end of each episode until 2009, but was then rebooted in 2017. It was designed to appeal to younger viewers and to increase ratings, which had fallen in the past decade. The segment is presented from the perspective of a three-year-old child as represented by its host, the Muppet Elmo, performed by Kevin Clash in the original series and Ryan Dillon in the 2017 reboot. https://en.wikipedia.org/wiki/Elmo%27s_World https://en.wikipedia.org/wiki/Elmo%27s_World