CREATE TABLE table_29920800_1 (us_viewers__million_ VARCHAR, written_by VARCHAR)

How many millions of U.S viewers watched the episode written by Liz Feldman?
SELECT us_viewers__million_ FROM table_29920800_1 WHERE written_by = "Liz Feldman"
SELECT "us_viewers__million_" FROM "table_29920800_1" WHERE "Liz Feldman" = "written_by"