Premise---of the sitcom's lead female teenager being offered a modeling job, then not being good enough for it---was copied from The Model (1981). Serial "Who's the Boss" copycats Drescher and Jaobson would, in turn, steal it from this title to clone it in Maggie the Model (1994).
Schneider, the Model (1980) also had the same premise of one character picked for modeling, then turning into a huge disappointment. Only, it was a middle aged man as model, instead of a teenage girl.