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:
| Series # | Season # | Title | Directed by | Written by | Original air date | U.S. viewers (in millions) |
| --- | --- | --- | --- | --- | --- | --- |
| 21.0 | 1.0 | "Friends Close, Enemies Closer" | Patrick Norris | Joanna Johnson | June28,2010 | 1.83 |
| 22.0 | 2.0 | "All or Nothing" | Fred Gerber | Kerry Lenhart & John J. Sakmar | July5,2010 | 1.72 |
| 23.0 | 3.0 | "Battle of the Flexes" | J. Miller Tobin | Amy Turner | July13,2010 | 1.56 |
| 24.0 | 4.0 | "And the Rocky Goes To..." | Bethany Rooney | Holly Sorensen | July20,2010 | 1.46 |
| 25.0 | 5.0 | "I Won't Dance, Don't Ask Me" | David Paymer | Michael Gans & Richard Register | July27,2010 | 1.66 |
| 26.0 | 6.0 | "Party Gone Out of Bounds" | Felix Alcala | Joanna Johnson | August3,2010 | 1.75 |
| 27.0 | 7.0 | "What Are You Made Of?" | Glenn L. Steelman | Holly Sorensen | August10,2010 | 1.56 |
| 28.0 | 8.0 | "Rock Bottom" | Chris Grismer | Liz Maccie | August17,2010 | 1.30 |
| 29.0 | 9.0 | "If Only..." | David Paymer | Michael Gans & Richard Register | August24,2010 | 1.42 |
| 30.0 | 10.0 | "At the Edge of the Worlds" | Chris Grismer | Kerry Lenhart & John J. Sakmar | August31,2010 | 1.44 |
| 31.0 | 11.0 | "The New Normal" | Michael Lange | Holly Sorensen | March28,2011 | 2.06 |
| 32.0 | 12.0 | "Free People" | Fred Gerber | Joanna Johnson | April4,2011 | 1.69 |
| 33.0 | 13.0 | "The Buddy System" | Glenn L. Steelman | Amy Turner | April11,2011 | 1.64 |
| 34.0 | 14.0 | "Life or Death" | David Paymer | Michael Gans & Richard Register | April18,2011 | 1.58 |
| 35.0 | 15.0 | "Hungary Heart" | Rod Hardy | Kerry Lenhart & John J. Sakmar | April25,2011 | 1.64 |
| 36.0 | 16.0 | "Requiem for a Dream" | Michael Schultz | Holly Sorenson | May2,2011 | 1.65 |
| 37.0 | 17.0 | "To Thine Own Self Be True" | John Behring | Liz Maccie | May9,2011 | 1.51 |
| 38.0 | 18.0 | "Dog Eat Dog" | Chris Grismer | Michael Gans & Richard Register | May16,2011 | 1.64 |
| 39.0 | 19.0 | "What Lies Beneath" | David Paymer | Joanna Johnson | May23,2011 | 1.49 |
Question:
What is the original air date for episode 4? 
Answer:
July20,2010