Complex sentence: In 1998, she moved to London and presented Newsroom South East until it ended in 2001, she then went on to present it's replacement BBC London News until 2005 when she moved to Sky News.
Split into simpler sentences: In 1998, she moved to London and presented Newsroom South East until it ended in 2001. She then went on to present its replacement BBC London News until 2005 when she moved to Sky News.