Table:
text: Agatha Christie's Poirot
DVD and Blu-ray releases
DVD and Blu-ray releases
Release_Title Series No_of_DVDs No_of_Blu_ray_Discs Release_Date Episode_No_ Region_No_ Released_by
The Complete Collection 1-11 28 N/A March 30, 2009 1-61 2 ITV Studios
The Complete Collection 1-12 32 N/A August 15, 2012 1-65 2 ITV Studios
The Early Cases 1-6 18 13 October 23, 2012 1-45 1 Acorn Media
The Definitive Collection 7-10 12 N/A January 25, 2011 46-57 1 A&E Home Video
The Movie Collection - Set 4 11 3 N/A July 7, 2009 58-59 1 Acorn Media
The Movie Collection - Set 5 11-12 3 N/A July 27, 2010 60-61, 64 1 Acorn Media

Question: Considering the DVD and Blu-ray releases of Agatha Christie's Poirot's, which series was released by ITV Studios with a release date of 15th August 2012?

Question: What is the episode number of Agatha Christie's Poirot with 28 DVD and Blu-ray releases?