thenextone...its a normal thing for most people to imitate tv shows and commercials...thats why many shows/ commercials that contain a bit of danger in them say things like....dont try this at home.....stunt is done with professionals and on a professional setting under supervision and other things like that..

there is a disorder called echolalia which is copying everything but it doesnt focus on just things like tv. its where a person says everything they say and everything they hear repeatedly..

it comes from many different things but is most seen in people with autism. schizophrenia, Alzheimer's and developmental disabilities.