CREATE TABLE table_23404 ("No. overall" CLOB, "No. in series" FLOAT, "Family/families" CLOB, "Location ( s ) " CLOB, "Original air date" CLOB)

how many original air date where family/families is the ryder family and the schwartz family
SELECT COUNT("Original air date") FROM table_23404 WHERE "Family/families" = 'The Ryder Family and The Schwartz Family'
SELECT COUNT("Original air date") FROM "table_23404" WHERE "Family/families" = 'The Ryder Family and The Schwartz Family'