After working as a presenter for regional BBC news program Points West, Carpenter started working for BBC's Breakfast Time from 1985 to 1986. She later joined ITN and started presenting main bulletins in daytime and evening sessions. She is also a well-known presenter for Transworld Sport on Channel Four.
She is also a well known comedian known for her standup skills. She has appeared in famous TV show called Bottom which starred Rik Mayall and Adrian Edmondson and has signed a photo of her as a reward for a game of poker.