Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| # | Title | Maneater | Television Premiere | DVD release | Writer | Director | Producer |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1.0 | Blood Monkey | Chimpanzees | January 27, 2007 | November 6, 2007 | George LaVoo Gary Dauberman | Robert Young | Charles Salmon |
| 2.0 | In the Spider's Web | Venomous Spiders | August 26, 2007 | November 6, 2007 | Gary Dauberman | Terry Windsor | Charles Salmon |
| 7.0 | Grizzly Rage | Grizzly Bear | June 7, 2007 | May 6, 2008 | Arne Olsen | David DeCoteau | Robert Halmi, Sr. Phyllis Lain |
| 8.0 | The Hive | Army Ants | February 17, 2008 | August 5, 2008 | T.S. Cook | Peter Manus | Charles Salmon Robert Halmi Sr. Robert Halmi Jr. |
| 17.0 | Sand Serpents | Prehistoric s Worm | July 11, 2009 | November 3, 2009 | Raul Inglis | Jeff Renfroe | Ric Nish |
| 23.0 | Behemoth | Behemoth | January 15, 2011 | April 5, 2011 | Rachelle S. Howie | W.D. Hogan | John Prince |
| 24.0 | Ferocious Planet | Beasts from parallel dimension | April 9, 2011 | July 5, 2011 | Douglas G. Davis | Billy O'Brien | Mary Callery |
Question:
When was the dvd release directed by Billy O'Brien?
Answer:
July 5, 2011