CREATE TABLE "season_1_2007_2009" (
  "prod_no" text,
  "title" text,
  "written_by" text,
  "directed_by" text,
  "original_airdate" text
);

Question: Who directed the episode written by Dan Serafin and aired on July 23, 2008?
SQL: SELECT "directed_by" FROM "season_1_2007_2009" WHERE "written_by"='dan serafin' AND "original_airdate"='july 23, 2008';

Question: What is the title of the episode originally aired on February 2, 2008?
SQL: SELECT "title" FROM "season_1_2007_2009" WHERE "original_airdate"='february 2, 2008';