Question: How many u.s. viewers  (million) have 6 as the #?
SQL: SELECT "U.S. viewers (million)" FROM "1-2866456-1" WHERE "#" = 6.0;

Question: Who is directed by when "Fade" is the title?
SQL: SELECT "Directed by" FROM "1-2866456-1" WHERE "Title" = '"Fade"';

Question: Who is the directed by when 2T6404 is the production code?
SQL: SELECT "Directed by" FROM "1-2866456-1" WHERE "Production code" = '2T6404';