CREATE TABLE table_48189 ("Release Title" TEXT, "Series" TEXT, "No. of DVDs" TEXT, "No. of Blu-ray Discs" TEXT, "Release Date" TEXT, "Episode No." TEXT, "Region No." FLOAT, "Released by" TEXT)

WHAT SERIES WAS RELEASED BY ITV STUDIOS AND A RELEASE DATE OF AUGUST 15, 2012?
SELECT "Series" FROM table_48189 WHERE "Released by" = 'itv studios' AND "Release Date" = 'august 15, 2012'
SELECT "Series" FROM "table_48189" WHERE "Release Date" = 'august 15, 2012' AND "Released by" = 'itv studios'