CREATE TABLE table_29123 ("No." FLOAT, "#" FLOAT, "Title" CLOB, "Directed by" CLOB, "Story by" CLOB, "Teleplay by" CLOB, "Original air date" CLOB, "U.S. viewers  ( millions ) " CLOB)

How many entries are there for u.s. viewers (millions) for the episode directed by rob bailey?
SELECT COUNT("U.S. viewers (millions)") FROM table_29123 WHERE "Directed by" = 'Rob Bailey'
SELECT COUNT("U.S. viewers (millions)") FROM "table_29123" WHERE "Directed by" = 'Rob Bailey'