Complex sentence: For months, Carter prepared his car and looked for sponsors, with his persistence in self-promotion paying off when U.S. broadcaster ABC gave him $250,000 to air the stunt on the episode of Wide World of Sports scheduled for September 25,1976.
Split into simpler sentences: For months, Carter prepared his car and looked for sponsors. Eventually, U.S. broadcaster ABC gave him $250,000 to air the stunt on the episode of Wide World of Sports scheduled for September 25,1976.