Question: What is the original air date of the episode "Another Happy Day"?
SQL: SELECT "Original Air Date (UK)" FROM "1-2570269-3" WHERE "Episode Title" = 'Another Happy Day';

Question: What is the title of the episode that aired on 13 August 1981?
SQL: SELECT "Episode Title" FROM "1-2570269-3" WHERE "Original Air Date (UK)" = '13 August 1981';

Question: What is the original air date of episode 3-02?
SQL: SELECT "Original Air Date (UK)" FROM "1-2570269-3" WHERE "Episode #" = '3-02';

Question: Who are the cast members of episode 3-04?
SQL: SELECT "Cast" FROM "1-2570269-3" WHERE "Episode #" = '3-04';