Question: What is the latest season number for a show with a production code of 816?
SQL: SELECT MAX("No. in season") FROM "1-19422702-1" WHERE "Production code" = 816.0;

Question: How many U.S. air dates were from an episode in Season 4?
SQL: SELECT COUNT("US airdate") FROM "1-19422702-1" WHERE "No. in season" = 4.0;