CREATE TABLE table_57492 ("Actor" CLOB, "Character" CLOB, "Duration" CLOB, "No. of series" CLOB, "Episodes" FLOAT)

What is the lowest number of episodes for anabel barnston?
SELECT MIN("Episodes") FROM table_57492 WHERE "Actor" = 'anabel barnston'
SELECT MIN("Episodes") FROM "table_57492" WHERE "Actor" = 'anabel barnston'