user: Question: How many episodes aired on 22January2009
Columns: ['Episode', 'Original title', 'Directed by', 'Written by', 'Original airdate', 'Duration', 'Viewership']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [24.0, '" The Path of True Love "', 'Dewi Humphreys', 'Jim Sullivan', '8January2009', '30 minutes', '4.07 million']
SQL:

assistant: SELECT COUNT("Episode") FROM "Table" WHERE "Original airdate" = '22January2009';