Queeny asked why all threads except the show discussion thread is locked on "show night".
The answer is: because people can't read our rules.
We request that ALL DISCUSSION of a show that's airing be kept in the "Show Discussion" thread for that night, until the show has completed airing on the west coast (3 hours after it finishes on the east coast). If people would follow that rule, there would be no need to lock the rest of the threads, but they don't. So, we help keep them honest by locking all remaining threads until 3 hours after east-coast showtime.
You may not start new threads or post in other threads, other than the Show Discussion thread, until the entire country has seen the show. If you were having a discussion in another thread which would be unaffected by the show discussion, then you'll just have to put that discussion on the back burner for a couple of hours.