user: Question: Name the total number of panelists for 19 January 2007
Columns: ['Episode Number', 'Air Date', 'Guest Host', 'Musical Guest (Song performed)', 'Who knows the most about the guest host? panelists', 'Coat Of Cash Wearing Celebrity']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, '5 January 2007', 'David Tennant', "Amy Winehouse ( You Know I'm No Good )", 'Amy Winehouse and George Galloway', 'Lauren Harries']
SQL:

assistant: SELECT COUNT("Who knows the most about the guest host? panelists") FROM "Table" WHERE "Air Date" = '19 January 2007';