Switching to television, from 2002 to 2004 she was a script editor on BBC One's daytime medical soap opera "Doctors". Raynor's TV writing career would take off when she was working as a script editor on Doctor Who. In addition to her production duties for the show, Raynor wrote the two-part story "Daleks in Manhattan"/"Evolution of the Daleks" for the third series of "Doctor Who", in which the Daleks invade New York City in 1930. She was the first woman to write for the new series, as well as the first woman to write a Dalek story in "Doctor Who"'s history. She then wrote another two-part story for Series 4, entitled "The Sontaran Stratagem"/"The Poison Sky" in which the Doctor's old enemies the Sontarans, last seen in 1985's "The Two Doctors", make their re-imagined return. UNIT and Martha Jones also returned in these episodes. She also continued her script editing duties in the same series, working on the Steven Moffat two-part story "Silence in the Library"/"Forest of the Dead" and Russell T Davies' "Midnight".