systems. The load and unload theaters no longer featured the stunning "Kaleidophonic Screens" that had dazzled guests as they boarded and exited their respective theater. The old screens had stretched from one wall to the other, with the giant GE logo in the center, and lit up in various colors and patterns like a kaleidoscope as the orchestral version of "There's a Great Big Beautiful Tomorrow" played. Various problems plagued the screens after 1973, so a set of generic silver curtains with colored lights shining on the GE logo took their place in both the load and unload theaters. The Florida version was planned so that guests loaded and unloaded on the first floor, without a post-show. The Progress City/EPCOT model was significantly downsized to fit in a window display that could be seen while riding PeopleMover. This display is located on the left side of the PeopleMover track inside the north show building which formerly housed Stitch's Great Escape!. GE wanted the attraction to have a new theme song, as they did not want their customers to wait for a "great big beautiful tomorrow", but to buy appliances today. So the Sherman Brothers created a new song, "The Best Time Of Your Life". Although it was very peppy and positive, the brothers later said that they felt that "There's a Great Big Beautiful Tomorrow" was a better fit. A new cast of voices and audio-animatronic "performers" were prepared for the 1975 version, including actor Andrew Duggan as Father. The first three acts had some cosmetic and set-design changes. The finale was changed to "New Year's Eve in the Home of the 1970s," and the breed of the family's dog was also changed. In 1981, a new final act was created to showcase "New Year's Eve in the Home of the 1980s"; the rest of the show remained the same. The attraction closed briefly for the change to be implemented. Post–GE years On March 10, 1985, General Electric's contract expired and the company chose not to renew. The attraction closed shortly thereafter so that all GE references could be removed. The externalGE logo was replaced with a design of a blueprint of the six carousel theaters surrounding the six fixed stages. The GE logo on the silver curtain was covered with a round sign with the blueprint logo and the name "Carousel of Progress". The GE logo still exists on