CREATE TABLE table_29196086_4 (no_in_series VARCHAR2, original_air_date VARCHAR2)

how many episodes originally aired january19,2013
SELECT COUNT(no_in_series) FROM table_29196086_4 WHERE original_air_date = "January19,2013"
SELECT COUNT("no_in_series") FROM "table_29196086_4" WHERE "January19,2013" = "original_air_date"