A sitcom in pre-production on the ABC television network. Conjoined twins Abigail and Brittany Hensel will star as Tina and Gina Fowler, sisters that don't always get along, but who learn to work together to solve high school mysteries. Dustin Diamond, formerly of "Saved by the Bell", will appear as Principal Wilford in the pilot episode. [1] (http://www.juiceenewsdaily.com/0405/entertainment/history_bell.html) A sitcom or situation comedy is a genre of comedy performance originally devised for radio but today typically found on television. ... Pre-production is the process of preparing all the elements involved a film, play, or other performance. ... ABC (disambiguation) ... A painting of Chang and Eng Bunker, circa 1836 Conjoined human fetuses Conjoined twins can occur in non-human animal species. ... Abigail and Brittany Hensel (born 8 March 1990, Minnesota) are dicephalic conjoined twins. ... Japanese high school students in uniform High school, or Secondary school, is the last segment of compulsory education in Australia, Canada, China, Hong Kong, Japan, South Korea, Singapore and the United States. ... Dustin Neil Diamond (born January 7, 1977), better known as Dustin Diamond, is an American actor who gained fame during the 1990s as Screech, a nerdy character in the popular television sitcom, Saved by the Bell. ... Saved by the Bell was a popular teen sitcom which ran from 1989 to 1993 and built a large, loyal fanbase. ... A television pilot is the first episode of an intended television series. ...