CREATE TABLE table_30456 ("Series #" FLOAT, "Title" CLOB, "Written by" CLOB, "Directed by" CLOB, "Original air date" CLOB, "Production code" CLOB, "U.S. viewers  ( millions ) " CLOB)

What is th title of the episode written by Nick Thiel?
SELECT "Title" FROM table_30456 WHERE "Written by" = 'Nick Thiel'
SELECT "Title" FROM "table_30456" WHERE "Written by" = 'Nick Thiel'