CREATE TABLE "table1_1876825_2" (
  "no_in_series" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" text
);

Question: Name the total number of production code by david richardson and todd holland
SQL: SELECT COUNT("production_code") FROM "table1_1876825_2" WHERE "written_by"='David Richardson' AND "directed_by"='Todd Holland';

Question: Name the total number of series for march 19, 2000
SQL: SELECT COUNT("no_in_series") FROM "table1_1876825_2" WHERE "original_air_date"='March 19, 2000';