Carol is frozen because she spent several hours searching for something to watch on the TV without ever coming to a decision. The actual medical term according to actress Amy Poehler is "search-itus" and the only cure just happens to be in Carol's hand. Poehler pulls the XFINITY X1 Voice Remote closer to her and asks it what she should watch. This frees Carol from her frozen position who most likely doesn't realize that she's been sitting there for hours. Amy doesn't consider herself a hero and it's not for her to say, but she'd sure like to hear someone call her one right now.