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:
| No. in series | No. in season | Title | Directed by | Written by | Original air date | Production code | U.S. viewers (millions) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 25.0 | 1.0 | " The Old Wagon " | Michael Spiller | Bill Wrubel | September22,2010 | 2ARG05 | 12.67 |
| 26.0 | 2.0 | " The Kiss " | Scott Ellis | Abraham Higginbotham | September29,2010 | 2ARG04 | 11.92 |
| 27.0 | 3.0 | " Earthquake " | Michael Spiller | Paul Corrigan & Brad Walsh | October6,2010 | 2ARG01 | 11.44 |
| 28.0 | 4.0 | " Strangers on a Treadmill " | Scott Ellis | Danny Zuker | October13,2010 | 2ARG02 | 11.45 |
| 29.0 | 5.0 | " Unplugged " | Michael Spiller | Steven Levitan | October20,2010 | 2ARG06 | 11.97 |
| 30.0 | 6.0 | " Halloween " | Michael Spiller | Jeffrey Richman | October27,2010 | 2ARG09 | 13.14 |
| 31.0 | 7.0 | " Chirp " | Michael Spiller | Dan O'Shannon | November3,2010 | 2ARG03 | 12.24 |
| 32.0 | 8.0 | " Manny Get Your Gun " | Michael Spiller | Teleplay: Danny Zuker Story: Christopher Lloyd | November17,2010 | 2ARG11 | 12.09 |
| 33.0 | 9.0 | " Mother Tucker " | Michael Spiller | Paul Corrigan & Brad Walsh | November24,2010 | 2ARG07 | 10.57 |
| 34.0 | 10.0 | " Dance Dance Revelation " | Gail Mancuso | Ilana Wernick | December8,2010 | 2ARG08 | 11.07 |
| 35.0 | 11.0 | " Slow Down Your Neighbors " | Gail Mancuso | Ilana Wernick | January5,2011 | 2ARG12 | 11.83 |
| 36.0 | 12.0 | " Our Children, Ourselves " | Adam Shankman | Dan O'Shannon & Bill Wrubel | January12,2011 | 2ARG10 | 11.12 |
| 37.0 | 13.0 | " Caught in the Act " | Michael Spiller | Steven Levitan & Jeffrey Richman | January19,2011 | 2ARG13 | 10.94 |
| 38.0 | 14.0 | " Bixby's Back " | Chris Koch | Danny Zuker | February9,2011 | 2ARG16 | 13.16 |
| 39.0 | 15.0 | " Princess Party " | Michael Spiller | Elaine Ko | February16,2011 | 2ARG17 | 10.57 |
| 40.0 | 16.0 | " Regrets Only " | Dean Parisot | Abraham Higginbotham | February23,2011 | 2ARG14 | 10.17 |
| 41.0 | 17.0 | " Two Monkeys and a Panda " | Beth McCarthy-Miller | Carol Leifer | March2,2011 | 2ARG15 | 10.11 |
| 42.0 | 18.0 | " Boys' Night " | Chris Koch | Steven Levitan & Jeffrey Richman | March23,2011 | 2ARG20 | 10.90 |
| 43.0 | 19.0 | " The Musical Man " | Michael Spiller | Paul Corrigan & Brad Walsh | April13,2011 | 2ARG19 | 9.61 |
| 44.0 | 20.0 | " Someone to Watch Over Lily " | Michael Spiller | Bill Wrubel | April20,2011 | 2ARG18 | 9.95 |
| 45.0 | 21.0 | " Mother's Day " | Michael Spiller | Dan O'Shannon & Ilana Wernick | May4,2011 | 2ARG21 | 9.90 |
| 47.0 | 23.0 | " See You Next Fall " | Steven Levitan | Danny Zuker | May18,2011 | 2ARG24 | 10.30 |
Question:
when was the episode with production code "2arg01" originally aired?
Answer:
October6,2010