As a screenwriter, Welch has developed many serials for the BBC, including The Magnificent 7, adaptations of Charles Dickens' novel Our Mutual Friend and Elizabeth Gaskell's North and South, and most recently the well-received 2006 interpretation of Charlotte Brontë's Jane Eyre.
As a screenwriter, Welch has developed numerous television programs for the BBC, including The Magnificent 7, adaptations of classic novels such as Our Mutual Friend and North and South, and most recently the acclaimed 2006 interpretation of Charlotte Brontë's Jane Eyre.