Harry Potter: Hogwarts Tournament of Houses

In Harry Potter: Hogwarts Tournament of Houses, the four houses compete in a trivia match about all things Potter. Hosted by Helen Mirren, the four-night event premieres Sunday November 28th on TBS and CN.

Tonight's battle of the Hogwarts houses sees the wise and witty Ravenclaws go up against the proud and ambitious Slytherins. Tonight's match-up will take place under the watchful eye of the master of ceremonies, Dame Helen Mirren.

Dame Helen Mirren returns to the Wizarding World to oversee this wildcard match-up. In addition, there will be special celebrity guests, actors from the original films and more Harry Potter trivia than you could squeeze into a cupboard under the stairs.

Join Dame Helen Mirren for a historic night in the history of Hogwarts as this epic TV event series culminates in the Grand Finale. It all comes down to this; one house will win the inaugural Hogwarts Tournament of Houses trophy tonight.