Yes, but if you do we ask that you mention "SPOILER" in the second line of the topic title if you're creating a new topic. For example:

My comments about "Zero Hour"
SPOILER

If you're responding to a topic, put "SPOILER" in the first line of your reply.

Remember that some of our Message Board users may not have seen the episode yet. Please don't give away surprises for those who don't want to know.