user: Question: which episode of the season aired on October20,2012
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original Air date']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [41.0, 1.0, '"Grampires"(Part 1)', 'Neill Fearnley', 'Erik Patterson & Jessica Scott', 'October13,2012']
SQL:

assistant: SELECT "No. in season" FROM "Table" WHERE "Original Air date" = 'October20,2012';