CREATE TABLE table_1723080_1 (run_time VARCHAR, viewers__in_millions_ VARCHAR)

What is run time when there were 7.4 million viewers?
SELECT run_time FROM table_1723080_1 WHERE viewers__in_millions_ = "7.4"
SELECT "run_time" FROM "table_1723080_1" WHERE "7.4" = "viewers__in_millions_"