Oh, man I had no idea there was a TWD thread. Gonna have to go back and read the whole thing. I missed ALL of season 2 but AMC had a marathon this past weekend - I watched almost the whole first and second seasons straight through.

<--- bleary-eyed from watching too much tv all at once!
I did watch the first episode of season 3 but I missed the last 2 or 3 episodes from last season. Can someone fill the gaps in for me, please? I saw where the walkers were found in the barn and Shane opened the door and they were all killed. I saw where .... can't remember his name - the farmer/veterinarian, Rick and Glenn were in the bar and were attacked by those guys; they took one hostage; planned to release him but wound up taking him back to the farm to be interrogated.
1 - why did they leave the farm?
It was overtaken by walkers
2 - what eventually happened to the kid/hostage
Shane took him into the woods and killed him. But he told everyone that the boy jumped him and took his gun. Shane wanted this boy dead from the get go.
3 - what happened to Shane?
Shane lured Rick out into the woods "looking" for the boy that "jumped" Shane. Shane just wanted the opportunity to kill Rick. Well, Rick figured it out, and in the end, killed with by stabbing him with a knife. Shane comes back as a walker and Carl shoots him to protect his father
4 - how did Dale die? (Nooooooo!!! he was my favorite!

)
Out in the field he gets attacked by a walker. He is still alive, barely. Daryl, I think, ends it by shooting him.
5 - how did Andrea get separated from the rest of the group?
When the walkers took over the farm, people got separated. They were concerned about Andrea, but they had to go.
6 - why is Rick so cold to Lori right now?
My guess, maybe because Lori could be carrying Shane's baby
I've "discovered" that TWD is covered on RCN's Video on Demand so I won't be missing any of season 3's episodes.