While not yet posted to their website, from their Facebook announcements, we have determined the following*:

• English Boy Wonders (review by Frank Blades, Mar 2001)
  
• Bard (review by Marcelo Silveyra, Jul 2002)
  
• Bard (review by Stephanie Sollow, Nov 2002)
  
• Gathering Speed (review by Duncan N Glenday, Mar 2004)
  
• Gathering Speed (review by Richard Zywotkiewicz, Mar 2004)
  
• Gathering Speed (review by Davide Guidone, Apr 2004)
  
• Gathering Speed (review by Clayton Walnum, Jul 2004)
  
• Gathering Speed (review by Joshua "Prawg Dawg" Turner, Jul 2004)
  
• Gathering Speed (review by Stephanie Sollow, Feb 2005)
  
• Gathering Speed (review by Marcelo Silveyra, Sep 2005)
  
• The Difference Machine (review by Eric Porter, Sep 2007)
  
• The Difference Machine (review by Marcel Haster, Jan 2008)
  
• The Underfall Yard (review by Richard Zywotkiewicz, Dec 2009)
  
• The Underfall Yard (review by Marcel Haster, Jan 2010)
  

• Hinterland (review by John "Bobo" Bollenberg, Sep 2005)
  

plus Fil'Mus2, a Portuguese group of musicians combining the "arts of cinema, music and theatre, where actors appear on screen, mixing reality with the recorded image and all the sounds heard made live by the musicians-actors." (from musicadaprimavera.pt/pt/filmus2 (though similar verbiage was seen elsewhere as well)

*FWIW, I also saw a posting by BBT about their appearance -ed.