Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_12995531_3 (total_viewers INTEGER, date_of_first_broadcast VARCHAR, episode_number VARCHAR)
### Question:
what is the total viewers where the date of first broadcast is 28 january 2010 and the episode number is 1?
### Answer:
SELECT MIN(total_viewers) FROM table_12995531_3 WHERE date_of_first_broadcast = "28 January 2010" AND episode_number = 1