Complex sentence: The new programme was due to launch on Monday 16 May 2011, however it was later announced that the launch of the new programme would take place on Monday 23 May 2011, a week later than originally planned.
Split into simpler sentences: The new programme was due to launch on Monday 16 May 2011. However, it was later announced that the launch of the new programme would take place on Monday 23 May 2011, a week later than originally planned.