Complex sentence: Rodgers and Hammerstein originally wrote the musical for a 1957 television broadcast starring Julie Andrews, and it was remade twice for television and adapted for the stage in various versions prior to the Broadway production.
Split into simpler sentences: Rodgers and Hammerstein originally wrote the musical for a 1957 television broadcast starring Julie Andrews, and the show was subsequently remade twice for television. It was adapted for the stage in a number of versions prior to the Broadway production.