Question: What is the total number of weeks that the Steelers had a record of 1–0?
SQL: SELECT COUNT("Week") FROM "2-12944805-15" WHERE "Record" = '1–0';

Question: Who was the opponent at the Steelers game that had a result of L 20–17?
SQL: SELECT "Opponent" FROM "2-12944805-15" WHERE "Result" = 'L 20–17';