Table:
text: Rescue: Special Ops
Series three
Series three
_ Title Original_airdate Timeslot Viewers_millions Nightly_rank Weekly_rank
14 Chemical Brothers 25 July 2011 Monday 8:30 pm – 9:30 pm 0.817 15 51
15 The Carter Redemption 25 July 2011 Monday 9:30 pm – 10:30 pm 0.789 16 53
16 Storm Chaser 1 August 2011 Monday 8:30 pm – 9:30 pm 0.800 13 45
17 Art Attack 8 August 2011 Monday 8:30 pm – 9:30 pm 0.755 12 54
18 Missing Pieces 15 August 2011 Monday 8:30 pm – 9:30 pm 0.864 11 39
19 Class of Their Own 22 August 2011 Monday 8:30 pm – 9:30 pm 0.820 10 39
20 The Intervention 29 August 2011 Monday 8:30 pm – 9:30 pm 0.729 15 47

Question: In Rescue: Special Ops, when was The Intervention originally aired?