Little Britian in the US

I dont understand why TV companys need to remake shows for american audiences.why are they making little britian in america? they will have to change the name to little america which wont make sense as america is big .unless you look at it in a spoon. we dont change american shows to english ones because we dont understand what they are saying.I understand what george bush says perfectly, I just dont understand why people let him.I have just got back from the pub and not much is making sence right now, I am trying to decifer the news without any luck.