CREATE TABLE table_66503 ("Title" TEXT, "Series" TEXT, "Director" TEXT, "Production Num." FLOAT, "Release date" TEXT)

Which Release date has a Director of tom palmer, and a Production Num larger than 5956?
SELECT "Release date" FROM table_66503 WHERE "Director" = 'tom palmer' AND "Production Num." > '5956'
SELECT "Release date" FROM "table_66503" WHERE "Director" = 'tom palmer' AND "Production Num." > '5956'