Question: What was the original air date when Ed Horowitz wrote it?
SQL: SELECT "Original airdate" FROM "2-10910712-4" WHERE "Written by" = 'Ed Horowitz';

Question: Name the episode number that aired on July 23, 2000
SQL: SELECT "Episode #" FROM "2-10910712-4" WHERE "Original airdate" = 'July 23, 2000';