In the early 1970's attendance at the Carousel of Progress begin to dwindle. General Electric decided that it was not getting enough advertising from the attraction. Their research showed that 80% of the people who saw the Carousel of Progress were from California and most had seen the attraction numerous times.
After getting this information, General Electric asked Disney to move the attraction to the newly opened Walt Disney World. Disney agreed, and on September 9, 1973 they closed the Carousel and moved it to Disney World. The Progress City model was also moved, and is now housed above [[Stitch's Great Escape!]] and It can be seen by guests riding the [[Tomorrowland Transit Authority PeopleMover]].
A new building for the show was constructed in Disney World's Tomorrowland. Unlike the minor changes that occurred when the show moved to Disneyland, major changes were made to the Carousel's show. For starters, the dazzling Kaleidophonic Screens that entertained guests while they were loading and unloading were removed. The screens experience many technical difficulties, and were replaced with silver curtains and a GE logo. General Electric also asked the Sherman Brothers to write a new song for the attraction. GE decided that they did not want guests wait for "A Great Big Beautiful Tomorrow", they wanted guests to buy products now. With this idea in mind, the Sherman Brothers created another song for the attraction called "The Best Time of Your Life" often mistakenly referred to as "Now Is Time". Instead of talking about how great the future would be, the new song focused on the present.