Ted tells the gang that he has invited a woman over under the pretense of checking out his antique camera collection, which Barney classifies as "bait".
He's tried many types of bait (slot machine, trampoline), but found that a teacup pig is the best kind, which Ted then borrows after seeing the reaction Robin, Marshall and Lily gave.
When she shows up to the bar with her co-workers, Barney is excited to see that she and all her friends are pharmaceutical representatives, which he calls the "hot-chick" profession of their generation (like the nurse or stewardess was in the past).
Unusual for the show, this episode filmed in front of a live studio audience, consisting of members of the Television Critics Association.
Writer Kourtney Kang described singer Carrie Underwood as a 'pleasant surprise' and worked to find additional jokes for her after she performed well in rehearsals.
[1][2] Kang had planned to have Barney include the bone organ from The Goonies as one of the things he used to get women to visit his apartment but the idea was dropped as it was too difficult to get permission.
She calls "the structure familiar in outline, but just the slightest bit shoddy in execution" and is a little disappointed by the good episode because it is not at the same high level as the rest of the season.
She criticizes the idea of the hot-pharmaceutical girl as unoriginal, saying it "was funny seven and a half years ago, when Heather Locklear played one on Scrubs".