CREATE TABLE table_16951593_1 (original_air_date VARCHAR, no_in_season VARCHAR)

Name the original air date of 1/2 in season
SELECT original_air_date FROM table_16951593_1 WHERE no_in_season = "1/2"
SELECT "original_air_date" FROM "table_16951593_1" WHERE "1/2" = "no_in_season"