"The CW capped off this first Thursday in May (and eighth night of the May sweeps) with freshman hit The Vampire Diaries (Viewers: #5, 3.37 million; A18-49: #4, 1.6/ 5) and Supernatural (Viewers: #5, 2.52 million; A18-49: #5, 1.2/ 3)." Both shows were pre-empted in Chicago, so the numbers will probably go down a little.
Source: PiFeedback