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 | Title | Directed by | Written by | Original air date | Production code | U.S. viewers (million) |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | " Pilot " | David Nutter | Bruno Heller | September23,2008 | 276040 | 15.60 |
| 2.0 | "Red Hair and Silver Tape" | David Nutter | Bruno Heller | September30,2008 | 3T7801 | 15.48 |
| 3.0 | "Red Tide" | David M. Barrett | Ashley Gable | October14,2008 | 3T7803 | 14.94 |
| 4.0 | "Ladies in Red" | Chris Long | Gary Glasberg | October21,2008 | 3T7802 | 15.28 |
| 5.0 | "Redwood" | John Behring | Andi Bushell | October28,2008 | 3T7804 | 16.07 |
| 6.0 | "Red Handed" | Chris Long | Erika Green Swafford | November11,2008 | 3T7807 | 16.57 |
| 7.0 | "Seeing Red" | Martha Mitchell | Gary Glasberg | November18,2008 | 3T7808 | 15.84 |
| 8.0 | "The Thin Red Line" | Matt Earl Beesley | Ken Woodruff | November25,2008 | 3T7806 | 15.93 |
| 9.0 | "Flame Red" | Charles Beeson | Ashley Gable | December2,2008 | 3T7810 | 18.74 |
| 10.0 | "Red Brick and Ivy" | Paris Barclay | Eoghan Mahony | December16,2008 | 3T7805 | 19.31 |
| 11.0 | "Red John's Friends" | John Polson | Bruno Heller | January6,2009 | 3T7809 | 19.62 |
| 12.0 | "Red Rum" | Dean White | Andi Bushell | January13,2009 | 3T7811 | 18.07 |
| 13.0 | "Paint it Red" | David M. Barrett | Eoghan Mahony | January18,2009 | 3T7812 | 16.39 |
| 14.0 | "Crimson Casanova" | Lesli Linka Glatter | Ken Woodruff | February10,2009 | 3T7813 | 19.70 |
| 15.0 | "Scarlett Fever" | Paul Holahan | Erika Green Swafford | February17,2009 | 3T7814 | 18.23 |
| 16.0 | "Bloodshot" | Chris Long | Gary Glasberg | March17,2009 | 3T7815 | 15.49 |
| 17.0 | "Carnelian, Inc." | Kevin Dowling | Bruno Heller | March24,2009 | 3T7816 | 17.62 |
| 18.0 | "Russet Potatoes" | Norberto Barba | Ashley Gable | March31,2009 | 3T7817 | 16.96 |
| 19.0 | "A Dozen Red Roses" | Lesli Linka Glatter | Andi Bushell | April7,2009 | 3T7818 | 16.92 |
| 20.0 | "Red Sauce" | Adam Kane | Eoghan Mahony | April28,2009 | 3T7819 | 17.11 |
| 21.0 | "Miss Red" | Martha Mitchell | Ken Woodruff | May5,2009 | 3T7820 | 16.68 |
| 22.0 | "Blood Brothers" | John Polson | Erika Green Swafford | May12,2009 | 3T7822 | 16.21 |
Question:
Which episode did 18.74 million people tune in?
Answer:
"Flame Red"