What is the total number of Viewers with a Rank (Night) of n/a, and a Timeslot of 8:30 p.m.?
CREATE TABLE table_name_80 (viewers__m_ VARCHAR, rank__night_ VARCHAR, timeslot VARCHAR)
SELECT COUNT(viewers__m_) FROM table_name_80 WHERE rank__night_ = "n/a" AND timeslot = "8:30 p.m."
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_80 (viewers__m_ VARCHAR, rank__night_ VARCHAR, timeslot VARCHAR) Question: What is the total number of Viewers with a Rank (Night) of n/a, and a Timeslot of 8:30 p.m.? [/INST] SELECT COUNT(viewers__m_) FROM table_name_80 WHERE rank__night_ = "n/a" AND timeslot = "8:30 p.m." </s>