CREATE TABLE table_24212608_1 (radio_1_presenter VARCHAR2, viewers__millions_ VARCHAR2)

Who was the radio 1 presenter for the broadcast that had 9.73 million viewers?
SELECT radio_1_presenter FROM table_24212608_1 WHERE viewers__millions_ = "9.73"
SELECT "radio_1_presenter" FROM "table_24212608_1" WHERE "9.73" = "viewers__millions_"