CREATE TABLE table_204_557 (id DECIMAL, "#" DECIMAL, "date" TEXT, "visitor" TEXT, "score" TEXT, "home" TEXT, "record" TEXT, "pts" DECIMAL)

which month had the most games ?
SELECT "date" FROM table_204_557 GROUP BY "date" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "date" FROM "table_204_557" GROUP BY "date" ORDER BY COUNT(*) DESC NULLS LAST LIMIT 1