CREATE TABLE table_56971 ("Date" TEXT, "Visitor" TEXT, "Score" TEXT, "Home" TEXT, "Record" TEXT)

When was the home game when the New Jersey team's record became 7-23-7?
SELECT "Date" FROM table_56971 WHERE "Home" = 'new jersey' AND "Record" = '7-23-7'
SELECT "Date" FROM "table_56971" WHERE "Home" = 'new jersey' AND "Record" = '7-23-7'