CREATE TABLE table_2102945_1 (viewers__in_millions_ VARCHAR, run_time VARCHAR)

When 24:31 is the run time how many millions of viewers are there?
SELECT viewers__in_millions_ FROM table_2102945_1 WHERE run_time = "24:31"
SELECT "viewers__in_millions_" FROM "table_2102945_1" WHERE "24:31" = "run_time"