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:
| Season | Timeslot | Premiere | Finale | TV season | Ranking | Viewers (in millions) |
| --- | --- | --- | --- | --- | --- | --- |
| 1st | Wednesday 8:30 p.m. | October 3, 2001 | May 15, 2002 | 2001–2002 | #55 | 10.0 |
| 2nd | Tuesday 8:30 p.m. | October 1, 2002 | May 20, 2003 | 2002–2003 | #51 | 10.3 |
| 3rd | Tuesday 9:00 p.m. | September 23, 2003 | May 25, 2004 | 2003–2004 | #51 | 10.0 |
| 4th | Tuesday 9:00 p.m. | September 21, 2004 | May 17, 2005 | 2004–2005 | #47 | 10.0 |
| 5th | Tuesday 8:00 p.m. | September 20, 2005 | May 2, 2006 | 2005–2006 | #90 | 6.7 |
| 6th | Wednesday 9:00 p.m. | January 3, 2007 | May 16, 2007 | 2006–2007 | #119 | 6.8 |
| 7th | Tuesday 9:00 p.m. | January 1, 2008 | March 11, 2008 | 2007–2008 | #146 | 5.3 |
| 7th | Tuesday 8:30 p.m. | April 15, 2008 | May 27, 2008 | 2007–2008 | #171 | 4.1 |
| 8th | Tuesday 9:00 p.m. | December 2, 2008 | December 30, 2008 | 2008–2009 | #104 | 5.6 |
| 8th | Tuesday 9:30 p.m. | December 2, 2008 | December 30, 2008 | 2008–2009 | #127 | 4.8 |
| 8th | Tuesday 8:00 p.m. | April 14, 2009 | June 2, 2009 | 2008–2009 | #148 | 3.8 |
Question:
What seasons had a ranking of #47?
Answer:
4th