Complex sentence: She appeared as a presenter in the 42nd People's Choice Awards, which aired on January 6,2016 on CBS, and at the 73rd Golden Globe Awards, broadcast January 10,2016, she presented along with "The Flash" star Grant Gustin.
Split into simpler sentences: She appeared as a presenter in the 42nd People's Choice Awards, which aired on January 6,2016 on CBS. She was a presenter in the 73rd Golden Globe Awards, she presented along with' Flash' star Grant Gustin.