Complex sentence: In the last few years, Moore introduced the public to comedian Carol Burnett, who after the show ended, became a star in her own right, hosting "The Carol Burnett Show" for many years.
Split into simpler sentences: In the last few years, Moore introduced the public to comedian Carol Burnett. After the show ended, Burnett became a star in her own right, hosting "The Carol Burnett Show" for many years.