In reality, the high majority of selly telly presenters haven't 'worked in' any other industry other than as a presenter on selly telly.
They don't work in horology, they sell watches.
They don't work in bedding, they sell pillows and duvet covers.
They don't work in cookery, they sell air fryers.
They don't work in children's toys, they sell drones.
They don't work in fragrance, they sell perfume.
They don't work in healthcare, they sell pills and potions.
They don't work in fitness, they sell pedal exercisers.
They DO work in Tales..of the Unexpected...