CREATE TABLE table_77353 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Game site" TEXT, "Record" TEXT, "Attendance" FLOAT)

On what date was the result w 28 7?
SELECT "Date" FROM table_77353 WHERE "Result" = 'w 28–7'
SELECT "Date" FROM "table_77353" WHERE "Result" = 'w 28–7'