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) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 14.0 | 1.0 | " Chuck Versus the First Date " | Jason Ensler | Josh Schwartz & Chris Fedak | September29,2008 | 3T7251 | 6.84 |
| 15.0 | 2.0 | " Chuck Versus the Seduction " | Allan Kroeker | Matthew Miller | October6,2008 | 3T7252 | 5.83 |
| 16.0 | 3.0 | " Chuck Versus the Break-Up " | Robert Duncan McNeill | Scott Rosenbaum | October13,2008 | 3T7253 | 6.17 |
| 17.0 | 4.0 | " Chuck Versus the Cougars " | Patrick Norris | Allison Adler | October20,2008 | 3T7254 | 6.87 |
| 18.0 | 5.0 | " Chuck Versus Tom Sawyer " | Norman Buckley | Phil Klemmer | October27,2008 | 3T7255 | 6.70 |
| 19.0 | 6.0 | " Chuck Versus the Ex " | Jay Chandrasekhar | Zev Borow | November10,2008 | 3T7256 | 6.34 |
| 20.0 | 7.0 | " Chuck Versus the Fat Lady " | Jeffrey G. Hunt | Matthew Lau | November17,2008 | 3T7257 | 6.89 |
| 21.0 | 8.0 | " Chuck Versus the Gravitron " | Allison Liddi-Brown | Chris Fedak | November24,2008 | 3T7258 | 6.53 |
| 22.0 | 9.0 | " Chuck Versus the Sensei " | Jonas Pate | Anne Cofell Saunders | December1,2008 | 3T7259 | 7.34 |
| 23.0 | 10.0 | " Chuck Versus the DeLorean " | Ken Whittingham | Matthew Miller | December8,2008 | 3T7260 | 6.94 |
| 24.0 | 11.0 | " Chuck Versus Santa Claus " | Robert Duncan McNeill | Scott Rosenbaum | December15,2008 | 3T7261 | 7.66 |
| 25.0 | 12.0 | " Chuck Versus the Third Dimension " | Robert Duncan McNeill | Chris Fedak | February2,2009 | 3T7263 | 8.45 |
| 26.0 | 13.0 | " Chuck Versus the Suburbs " | Jay Chandrasekhar | Phil Klemmer | February16,2009 | 3T7264 | 6.84 |
| 27.0 | 14.0 | " Chuck Versus the Best Friend " | Peter Lauer | Allison Adler | February23,2009 | 3T7262 | 6.59 |
| 28.0 | 15.0 | " Chuck Versus the Beefcake " | Patrick Norris | Matthew Miller & Scott Rosenbaum | March2,2009 | 3T7265 | 6.66 |
| 29.0 | 16.0 | " Chuck Versus the Lethal Weapon " | Allan Kroeker | Zev Borow & Matthew Lau | March9,2009 | 3T7266 | 5.80 |
| 30.0 | 17.0 | " Chuck Versus the Predator " | Jeremiah Chechik | Chris Fedak | March23,2009 | 3T7267 | 6.16 |
| 31.0 | 18.0 | " Chuck Versus the Broken Heart " | Kevin Bray | Allison Adler | March30,2009 | 3T7268 | 5.72 |
| 32.0 | 19.0 | " Chuck Versus the Dream Job " | Robert Duncan McNeill | Phil Klemmer & Cory Nickerson | April6,2009 | 3T7269 | 6.10 |
| 33.0 | 20.0 | " Chuck Versus the First Kill " | Norman Buckley | Scott Rosenbaum | April13,2009 | 3T7270 | 6.21 |
| 34.0 | 21.0 | " Chuck Versus the Colonel " | Peter Lauer | Matthew Miller | April20,2009 | 3T7271 | 6.11 |
Question:
How many U.S. viewers (million) watched the episode directed by Allison Liddi-Brown?
Answer:
6.53