CREATE TABLE table_29336 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production code" TEXT, "U.S. viewers  ( million ) " TEXT)

How many U.S. viewers (million) watched the episode directed by Allison Liddi-Brown?
SELECT "U.S. viewers (million)" FROM table_29336 WHERE "Directed by" = 'Allison Liddi-Brown'
SELECT "U.S. viewers (million)" FROM "table_29336" WHERE "Directed by" = 'Allison Liddi-Brown'