My son has been having conversations with imaginary characters. I know, because I can listen to some of them, and even see pictures. The children’s entertainment publisher ToyTalk created an interactive program, the Winston Show, and as my son talks back to the characters in that show, I get emails with subject lines like, "Your kid said something awesome." I can sign into my account and find multiple sound files and screenshots of him having a conversation with an imaginary character from a show he’s been watching on his iPad. It’s adorable, and it’s the interactive future of tablet-based television.