CREATE TABLE "table1_29920800_1" (
  "no_in_series" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" real,
  "u_s_viewers_million" text
);

Question: Who directed the episode that was watched by 2.97 million U.S. viewers? 
SQL: SELECT "directed_by" FROM "table1_29920800_1" WHERE "u_s_viewers_million"='2.97';

Question: What is the original air date of the episode written by Liz Feldman?
SQL: SELECT "original_air_date" FROM "table1_29920800_1" WHERE "written_by"='Liz Feldman';

Question: Who wrote the episode that was watched by 2.97 million U.S. viewers? 
SQL: SELECT "written_by" FROM "table1_29920800_1" WHERE "u_s_viewers_million"='2.97';

Question: How many millions of U.S viewers watched the episode written by Liz Feldman? 
SQL: SELECT "u_s_viewers_million" FROM "table1_29920800_1" WHERE "written_by"='Liz Feldman';