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) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 54/55 | 1/2 | " Fun Run "‡ | Greg Daniels | Greg Daniels | September27,2007 | 4001/4002 | 9.7 |
| 56/57 | 3/4 | " Dunder Mifflin Infinity "‡ | Craig Zisk | Michael Schur | October4,2007 | 4003/4004 | 8.49 |
| 58/59 | 5/6 | " Launch Party "‡ | Ken Whittingham | Jennifer Celotta | October11,2007 | 4005/4006 | 8.91 |
| 60/61 | 7/8 | " Money "‡ | Paul Lieberstein | Paul Lieberstein | October18,2007 | 4007/4008 | 8.50 |
| 62 | 9 | " Local Ad " | Jason Reitman | B. J. Novak | October25,2007 | 4009 | 8.98 |
| 63 | 10 | " Branch Wars " | Joss Whedon | Mindy Kaling | November1,2007 | 4010 | 8.39 |
| 64 | 11 | " Survivor Man " | Paul Feig | Steve Carell | November8,2007 | 4011 | 8.29 |
| 65 | 12 | " The Deposition " | Julian Farino | Lester Lewis | November15,2007 | 4012 | 8.86 |
| 66 | 13 | " Dinner Party " | Paul Feig | Gene Stupnitsky & Lee Eisenberg | April10,2008 | 4013 | 9.22 |
| 67 | 14 | " Chair Model " | Jeffrey Blitz | B. J. Novak | April17,2008 | 4014 | 9.81 |
| 68 | 15 | " Night Out " | Ken Whittingham | Mindy Kaling | April24,2008 | 4015 | 7.56 |
| 69 | 16 | " Did I Stutter? " | Randall Einhorn | Brent Forrester & Justin Spitzer | May1,2008 | 4016 | 7.67 |
| 70 | 17 | " Job Fair " | Tucker Gates | Lee Eisenberg & Gene Stupnitsky | May8,2008 | 4017 | 7.22 |
Question:
Name the original air date of 1/2 in season
Answer:
September27,2007