Original sentence: He was also a regular stand-in on the BBC Six O'Clock News and BBC Ten O'Clock News and co-presented the BBC News at Six on fridays from september 2003 to summer 2007 allongside Sian Williams
Edited sentence: He was also a regular stand-in on the BBC Six O'Clock News and BBC Ten O'Clock News and co-presented the BBC News at Six on Fridays from September 2003 to summer 2007 allongside Sian Williams