Complex sentence: On Sky Digital, it was replaced by UKTV Style 2 on 12 December 2007, which eventually closed on 15 September 2008 and its slot was used to launch Watch on 7 October 2008.
Split into simpler sentences: On Sky Digital, it was replaced by UKTV Style 2 on 12th December 2007. It closed down on 15th September 2008 and it's slot was used to launch Watch on 7th October 2008.