via ratings notes:
Who the (Bleep) Did I Marry is Wedded (Ratings) Bliss for ID
Investigation Discovery's Who the (Bleep) Did I Marry? on Wednesday, August 25 became the #1 series premiere in network history, delivering more than 649,000 P2+, 382,000 P25-54 and 315,000 P18-49.
Episodes premiere Wednesdays at 10 PM through Wednesday, November 3.
Source: The Nielsen Company, NHI Calendar ( 1/27/08 - 8/25/10), Live +SD, Program Based Dayparts, (Prime)