CREATE TABLE table_23502 ("No. in series" CLOB, "No. in season" CLOB, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" CLOB, "U.S. viewers  ( millions ) " CLOB)

How many millions of people in the US saw the episode with production code 214?
SELECT "U.S. viewers (millions)" FROM table_23502 WHERE "Production code" = '214'
SELECT "U.S. viewers (millions)" FROM "table_23502" WHERE "Production code" = '214'