Open chats will be a feature at Screen Jam, but with time zones, tapes and TiVo affecting everyone's viewing habits, we'll want to make sure we don't spoil everyone's viewing.
If it's a show like Lost in which you're likely to see it an hour or four before me, I'll set up a specific thread so that you can chat about it while not ruining the suspense for others.
Beyond that, if I ask you to hold off on revealing plot details on any given show in the comments, I hope you won't mind.
Also, please don't discuss "scenes from next week's episode" or commercial teasers in the comments. Those, to me, are spoilers. Just this year, for example, the kiss between Jim and Pam was thoughtlessly disclosed in promos for the season finale of The Office.