After 10 seasons, the Smallville two hour series finale is tonight.
Recent week's Smallville ratings haven't seemed to be building to a big finish. After staying comfortably above a 1.0 adults 18-49 rating in the Fall, a 1.0 rating has been more of a ceiling in the Spring, and the last two weeks have registered season low 0.8 adults 18-49 ratings.
But the series finale could easily be a trend breaker.
How high will Smallville's ratings fly tonight?
