&quot;Big Days&quot; -- When Ted and Barney (Neil Patrick Harris) argue about who has &quot;dibs&quot; on a hot girl, Ted realizes that she is there with Cindy, a girl he previously dated, on the sixth season premiere of HOW I MET YOUR MOTHER, Monday, September 20 (8:00-8:30 PM, ET/PT) on the CBS Television Network. Photo: Eric McCandless/FOX©2010 Fox Television. All Rights Reserved.