CREATE TABLE table_61691 ("Date From" TEXT, "Date To" TEXT, "Position" TEXT, "Name" TEXT, "From" TEXT)

What is the date for Liverpool, and player Robbie Threlfall?
SELECT "Date From" FROM table_61691 WHERE "From" = 'liverpool' AND "Name" = 'robbie threlfall'
SELECT "Date From" FROM "table_61691" WHERE "From" = 'liverpool' AND "Name" = 'robbie threlfall'