Visible crew/equipment: When Marshall runs through the smoke towards The Limo, you can see the fog machine in front of Barney's head used to create the "smoke" effect. (00:17:40)
Nothing Good Happens After 2 A.M. - S1-E18
Visible crew/equipment: When Robin hands Ted the glass of wine, you can see set lights reflected in the glass. (00:10:55)
Moving Day - S2-E18
Visible crew/equipment: When Barney falls over in the truck, as he is lying on the floor you can see his mic on the back of his trousers and a wire connected to it. (00:16:35)
Suggested correction: Depending on the location settings on his laptop, they could be giving a false reading. My laptop shows I'm in Cardiff Wales while in fact I'm nowhere near.
Ssiscool ★
The show was actually filmed on a film set in Los Angeles which is probably why the laptop says Los Angeles as the current location. This most probably slipped past the editing crew.