CREATE TABLE "table1_2468961_4" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" real
);

Question: Who wrote the episode that originally aired April 29, 1994?
SQL: SELECT "written_by" FROM "table1_2468961_4" WHERE "original_air_date"='April 29, 1994';

Question: What was the production code for the episode that debuted October 1, 1993?
SQL: SELECT MAX("production_code") FROM "table1_2468961_4" WHERE "original_air_date"='October 1, 1993';

Question: Who wrote the episode "Sister Act"?
SQL: SELECT "written_by" FROM "table1_2468961_4" WHERE "title"='\"Sister Act\"';

Question: What was the title of series number 56?
SQL: SELECT "title" FROM "table1_2468961_4" WHERE "no_in_series"=56;

Question: What was the title of the episode written by Julia Newton in series 48?
SQL: SELECT "title" FROM "table1_2468961_4" WHERE "written_by"='Julia Newton' AND "no_in_series"=48;