"is wildfire as delicious as Fireball"?

The only one who knows is Aerion Targaryen, and he's dead...from drinking wildfire.

The Blackfish (Brynden Tully) is Catelyn and Edmure Tully's uncle. He holds Riverrun and since the Freys are not able to take the castle by force or lay it to siege, they are going to try to use Edmure as a bargaining chip to make the Blackfish surrender.

Unsure if the Freys know that Jaime is leading a Lannister army to Riverrun to help them out.

The order and serenity of Horn Hill shows you how competent and in control Randyll Tarly is, despite his obscene dickishness. He tolerates no discord in his lands. In the books, he is one of the most accomplished and talented military commanders in the land, and basically never loses. Hh spends the war basically hunting down outlaws for fun.

By stealing Heartsbane, Sam basically signed his own death warrant. His father is going to hunt him to the ends of the world to get it back.

@3: except that Sam Tarly is one of the main protagonists of the series, so either he'll kill his dad or there will be a rapprochement.

@4: I seem to recall main characters dying on this show before.

He won't kill his dad (he doesn't have the balls or the skill), but he may make it to somewhere that will give him safe harbor, such as the Wall or Oldtown. But the missing sword will be noticed first thing in the morning, and Tarly will send out his swiftest riders immediately to track Sam down.