Table:
text: List of Argumental episodes
Series 3
Series 3
Episode First_broadcast Rufus_guest Marcus_guest Winner
3x10 19 October 2010 Ben Miller Sean Lock Red (3–2)
3x11 26 October 2010 Richard Herring Stephen Mangan Red (3–2)
3x12 2 November 2010 Sarah Millican Sean Lock Red (4–1)

Question: What is the first air date for series 3 season 3 argumentative episodes 3x10?