CREATE TABLE table_4218 ("No. in series" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" FLOAT, "U.S. viewers  ( millions ) " CLOB)

How many million people in the US saw the episode with production code 105?
SELECT "U.S. viewers (millions)" FROM table_4218 WHERE "Production code" = '105'
SELECT "U.S. viewers (millions)" FROM "table_4218" WHERE "Production code" = '105'