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:
| Episode Number | Air Date | Guest Host | Musical Guest (Song performed) | Who knows the most about the guest host? panelists |
| --- | --- | --- | --- | --- |
| 1.0 | 6 January 2006 | Billie Piper | Texas ( Sleep ) | Jade Goody and Kenzie |
| 2.0 | 13 January 2006 | Lorraine Kelly | Editors ( Munich ) | Myleene Klass and Phil Tufnell |
| 3.0 | 20 January 2006 | Christian Slater | The Kooks ( You Don't Love Me ) | Lady Isabella Hervey and Fearne Cotton |
| 4.0 | 27 January 2006 | Denise van Outen | Boy Kill Boy ( Back Again ) | Bez and Nadia Almada |
| 5.0 | 3 February 2006 | Michael Barrymore | The Ordinary Boys ( Boys Will Be Boys ) | Nancy Sorrell and Samia Smith |
| 6.0 | 10 February 2006 | Jamie Oliver | Kubb ( Grow ) | Tara Palmer-Tomkinson and Chantelle Houghton |
| 7.0 | 17 February 2006 | Jessie Wallace | Hard-Fi ( Hard to Beat ) | Caprice Bourret and Hilda Braid |
Question:
Name the number of panelists for 20 january 2006 air date
Answer:
1.0