CREATE TABLE table_47344 ("Game" FLOAT, "Date" TEXT, "Opponent" TEXT, "Score" TEXT, "Location" TEXT, "Record" TEXT)

On what date did they play in Boston Garden with a record of 22-4?
SELECT "Date" FROM table_47344 WHERE "Location" = 'boston garden' AND "Record" = '22-4'
SELECT "Date" FROM "table_47344" WHERE "Location" = 'boston garden' AND "Record" = '22-4'