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 (million) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 148.0 | 1.0 | " And Then There Were Fewer " | Dominic Polcino | Cherry Chevapravatdumrong | September26,2010 | 8ACX01/8ACX02 | 9.41 |
| 149.0 | 2.0 | " Excellence in Broadcasting " | John Holmquist | Patrick Meighan | October3,2010 | 8ACX03 | 7.94 |
| 150.0 | 3.0 | " Welcome Back, Carter " | Cyndi Tang | Wellesley Wild | October10,2010 | 8ACX04 | 7.02 |
| 151.0 | 4.0 | " Halloween on Spooner Street " | Jerry Langford | Andrew Goldberg | November7,2010 | 8ACX06 | 7.97 |
| 152.0 | 5.0 | " Baby, You Knock Me Out " | Julius Wu | Alex Carter | November14,2010 | 8ACX05 | 7.00 |
| 153.0 | 6.0 | " Brian Writes a Bestseller " | Joseph Lee | Gary Janetti | November21,2010 | 8ACX07 | 6.59 |
| 154.0 | 7.0 | " Road to the North Pole " | Greg Colton | Chris Sheridan & Danny Smith | December12,2010 | 8ACX08/8ACX09 | 8.03 |
| 155.0 | 8.0 | " New Kidney in Town " | Pete Michels | Matt Harrigan & Dave Willis | January9,2011 | 8ACX10 | 9.29 |
| 156.0 | 9.0 | " And I'm Joyce Kinney " | Dominic Bianchi | Alec Sulkin | January16,2011 | 8ACX12 | 7.08 |
| 157.0 | 10.0 | " Friends of Peter G. " | John Holmquist | Brian Scully | February13,2011 | 8ACX13 | 5.99 |
| 158.0 | 11.0 | " German Guy " | Cyndi Tang | Patrick Meighan | February20,2011 | 8ACX14 | 6.56 |
| 159.0 | 12.0 | " The Hand That Rocks the Wheelchair " | Brian Iles | Tom Devanney | March6,2011 | 8ACX11 | 6.32 |
| 160.0 | 13.0 | " Trading Places " | Joseph Lee | Steve Callaghan | March20,2011 | 8ACX17 | 6.55 |
| 161.0 | 14.0 | " Tiegs for Two " | Jerry Langford | John Viener | April10,2011 | 8ACX16 | 6.61 |
| 162.0 | 15.0 | " Brothers & Sisters " | Julius Wu | Alex Carter | April17,2011 | 8ACX15 | 6.04 |
| 163.0 | 16.0 | " The Big Bang Theory " | Dominic Polcino | David A. Goodman | May8,2011 | 8ACX18 | 6.52 |
| 164.0 | 17.0 | " Foreign Affairs " | Pete Michels | Anthony Blasucci & Mike Desilets | May15,2011 | 8ACX19 | 6.55 |
Question:
Which production code had original air dated february20,2011
Answer:
8ACX14