Its not just a show.
Its a Japanese pop culture meaning where young teens or adults that are celebrities pretty much be celebrities and are expected to be a role model
Person 1:Omg did you see Misa on T.V last night
Person 2 :Yes, she was awesome
Person 3 :She's so my role model
Person 4 : geez, she's just a pop idol
Person 1, 2, and 3: SHUT UP