Monday Night Football - S2-E14
Continuity mistake: When the gang are about to watch the Super Bowl, Marshall is holding a chicken wing which vanishes from his hand when the camera angle changes.
Monday Night Football - S2-E14
Continuity mistake: In the classroom, Marshall squirts juice on to the boy's clothes then puts the juice pouch flat on the table. In the next shot, the pouch is standing upright.
Chosen answer: She was finally shown at the very end of the last episode of season 8, continuing into season 9. The actor's name is Cristin Milioti: http://www.imdb.com/name/nm2129662/.
Knever