When Barney says that he met Emmitt Smith, Lily turns to him with a chicken wing in her hand, the camera then cuts to Ted then back to Lily and Barney and she is now biting on a carrot stick.
The Super Bowl 2007 took place on the 4th of February, whereas this episodes refers to the 6th.
Barney offers Marshall a Super Bowl bet, saying, "I'll give you the Seahawks plus six points for $500." Robin, who at the time is new to the clique, enters and delivers three lines that are supposed to show she fits in with the group. Two of the lines work, when she compliments the beloved chicken wings and likes a Super Bowl commercial. But in the first of the three she says, "I'll take that action but make it 4 points and a grand." She's actually made the bet worse for herself by getting two fewer points. This has the opposite effect than what the writers intended for the character at that point.