DUE TO SEVERE WEATHER THIS EVENT HAS BEEN CANCELLED. SOME ORGANIZATIONS WILL HONOR OPEN HOUSE SPECIAL TICKET OFFERS ONLINE. SEE www.TheaterDistrictOpenHouse.com FOR UPDATES. Theater District Houston hosts its 24th annual Transcanada Theater District Open House on Sunday, August 27, 2017. Marking the official launch of the fall performing arts season, the event is a free, family-friendly …