The show featured nationally known guest performers, including The Monkees, Herman's Hermits, Paul Revere and the Raiders, The Rose Garden, 13th Floor Elevators, Sonny and Cher, The Outsiders and Frank Zappa.
The original four included Joanie Prather (Janet on Eight is Enough), Calleen Anderegg (Miss Dallas 1966), Delpha Teague, and Kathy Forney.
The Sump'n Else show featured local bands including The Five Americans, The Uniques, The Novas, The Menerals, Those Guys, Kenny and the Kasuals, The Briks, Mouse and the Traps, Kit and the Outlaws, Johnathan's Experiences, The Dancing Bear, The Chaparrals, The Glad Ones, Living End, Redcoats, Tracers, The Outcasts and The Visions.
When major acts appeared, police officers were located both inside and outside the mall directing traffic and handling the large crowds.
A youth-oriented clothing store called Pois'n Ivy opened next to the studio and advertised on the show, capitalizing on the program's local popularity.
Ron Chapman retired from full-time broadcasting in the summer of 2005, but continued to be featured as a television/radio pitchman for many years thereafter prior to his death in April 2021.