Complex sentence: On 23 May 2014, it was announced that "The Island" has been recommissioned for a second series to air in 2015, and within a day almost 40,000 applied to appear on the second series, and over 80,000 applied in total.
Split into simpler sentences: On 23 May 2014, it was announced that "The Island" has been recommissioned for a second series to air in 2015. Within a day of the request for participants, almost 40,000 applied to appear on the second series, and over 80,000 applied in total.