Good Luck Charlie is an original Disney Channel television sitcom, which premiered April 4, 2010. The series was created by Phil Baker and Drew Vaupen, who wanted to create a program that would appeal to entire families, as opposed to children only. It revolves around a Denver family, the Duncans, as they try to adjust to the birth of their fourth child, Charlotte "Charlie" Duncan (Mia Talerico). In each episode, Teddy Duncan (Bridgit Mendler) creates a video diary containing advice for Charlie about their family and life as a teenager. Teddy tries to show Charlie what she might go through when she is older in the video diaries for future reference.