CREATE TABLE table_31243 ("Episode" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "UK viewers  ( million ) " CLOB, "Share  ( % ) " CLOB, "Original air date" CLOB)

How many episodes have the title 'episode 2'?
SELECT MIN("Episode") FROM table_31243 WHERE "Title" = 'Episode 2'
SELECT MIN("Episode") FROM "table_31243" WHERE "Title" = 'Episode 2'