HBO on Demand will start airing "a sneak preview" of Order of the Phoenix on November 20th. Right now there are no other details concerning what will be included in HBO's preview, but our guess is that it might include clips from the trailer (which will be released on the 17th before Happy Feet).

As we reported in October, Goblet of Fire will make its television premiere on the 19th. In association with the movie, HBO is holding a contest to win tickets to the OOTP premiere.

No time is listed on HBO's website for the OOTP sneak preview, but we will update you as soon as we find out!