Simplify the following text for a Grade 7 native English-speaking person.
Original: Dalek toys released in the 1970s included a new version of Louis Marx 's battery-operated Dalek ( 1974 ) , a `` talking Dalek '' from Palitoy ( 1975 ) and a Dalek board game ( 1975 ) and Dalek action figure ( 1977 ) , both from Denys Fisher .
Simplified: A single Dalek appeared in `` Dalek '' , written by Robert Shearman , which was broadcast on BBC One on 30 April 2005 . This Dalek appeared to be the sole Dalek survivor of a Time War that had destroyed both the Daleks and the Time Lords .