Name the broadcast date for 6.4 million viewers for the archive of 16mm t/r
CREATE TABLE table_1776943_1 (broadcast_date VARCHAR, viewers__in_millions_ VARCHAR, archive VARCHAR)
SELECT broadcast_date FROM table_1776943_1 WHERE viewers__in_millions_ = "6.4" AND archive = "16mm t/r"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1776943_1 (broadcast_date VARCHAR, viewers__in_millions_ VARCHAR, archive VARCHAR) Question: Name the broadcast date for 6.4 million viewers for the archive of 16mm t/r [/INST] SELECT broadcast_date FROM table_1776943_1 WHERE viewers__in_millions_ = "6.4" AND archive = "16mm t/r" </s>