CREATE TABLE table_17697980_1 (region_2 VARCHAR, dvd_title VARCHAR)

How many dvd titled 'series 5' were released having a release date or a non available date in region 2?
SELECT COUNT(region_2) FROM table_17697980_1 WHERE dvd_title = "Series 5"
SELECT COUNT("region_2") FROM "table_17697980_1" WHERE "Series 5" = "dvd_title"