Question: What is the production code for episode #78?
SQL: SELECT "Prod. code" FROM "1-2623498-5" WHERE "Episode #" = '78';

Question: What is the number of titles written by Charleen Easton?
SQL: SELECT COUNT("Title") FROM "1-2623498-5" WHERE "Written by" = 'Charleen Easton';

Question: What is the number of production codes for episode #73?
SQL: SELECT COUNT("Prod. code") FROM "1-2623498-5" WHERE "Episode #" = '73';

Question: What is the number of air dates titled "The Big Job"?'
SQL: SELECT COUNT("Original air date") FROM "1-2623498-5" WHERE "Title" = '"The Big Job"';