I'm on 11 honestly, so not too many. I'll probably stop when they get to a good stopping point or when I just get tired of it.
Or when the episode airs tonight. >w>
Also:
http://www.facebook.com/kilroywuzheere?v=app_2347471856#!/note.php?note_id=392953900126 Stupid Armstrong jokes. READ IT! You'll laugh, promise.