CREATE TABLE table_51167 ("Episode" FLOAT, "Original airdate" CLOB, "Timeslot  ( approx. ) " CLOB, "Viewers  ( millions ) " FLOAT, "Nightly rank" CLOB)

Rank for viewers larger than 1.244?
SELECT "Nightly rank" FROM table_51167 WHERE "Viewers (millions)" > '1.244'
SELECT "Nightly rank" FROM "table_51167" WHERE "Viewers (millions)" > '1.244'