CREATE TABLE "table1_27208814_1" (
  "episode_no_episode_no_refers_to_the_episodes_number_in_the_overall_series_whereas_series_no_refers_to_the_episodes_number_in_this_particular_series" real,
  "series_no" real,
  "episode" text,
  "director" text,
  "writer" text,
  "original_airdate" text
);

Question: Name the original airdate for robin mukherjee and margy kinmonth
SQL: SELECT "original_airdate" FROM "table1_27208814_1" WHERE "writer"='Robin Mukherjee' AND "director"='Margy Kinmonth';

Question: Name the least series number for episode number being 78
SQL: SELECT MIN("series_no") FROM "table1_27208814_1" WHERE "episode_no_episode_no_refers_to_the_episodes_number_in_the_overall_series_whereas_series_no_refers_to_the_episodes_number_in_this_particular_series"=78;