Dr. Marvin Monroe's on-the-air therapy is an on the air channel which helps you with your problems, This was on The Simpsons episode Some Enchanted Evening, Marge calls to help Marge & Homer's relationship. The radio is call - in and is occupied by Marvin Monroe, in the KBBL studios. The Dr says to Marge that she is the goose and homer has become her mother. The rule of the radio is that you are not allowed to use someone's real name. That is what happened to Marge, she had to use Pedro instead of Homer. The advice that marvin gave Marge was helpful, in a way. The only appearance was Some Enchanted Evening, it was probably closed down after Dr. Marvin Monroe's supposed death.