In the beginning of the episode, when Ted and The Mother walk past the Scottish-Mexican restaurant, there is an advertisement for Wharmpess beer in the background. This is the beer created by Marshall and Barney's former coworker Randy Wharmpess.
In real life, Taran Killam, who plays Gary Blauman, is married to Cobie Smulders, who plays Robin Scherbatsky.
Alexis Denisof (Sandy Rivers) is married to Alyson Hannigan (Lily); Taran Killam (Gary Blauman) is married to Cobie Smulders (Robin); and David Burtka (Scooter) is married to Neil Patrick Harris (Barney).
The song playing in the background while the camera floats over the parking lot is "Where Are They Now?" by the Kinks.
When Marshall reassures Robin that he can handle the seating-chart issue caused by Gary Blauman's arrival, he claims that table 27 from his wedding still gets together. In the cutaway it shows table 27 on a log ride at Tuckahoe Funland. Tuckahoe Funland is the amusement park that Marshall would have represented had he taken the job at Nicholson, Hewitt, and West in season 3 episode 6.