episode of The Twilight Zone (S1 E58)

episode of The Twilight Zone

episode of Babylon 5 (S1 E10)

episode of the animated Star Trek TV series

Star Trek screenplay

short story by David Gerrold and Ctein

episode of Land of the Lost (S1 E1)

episode of Land of the Lost (S1 E17)

short story

Book

episode of Land of the Lost (S1 E16)

episode of Star Trek: The Original Series (S2 E8)

short story by David Gerrold

novel by David Gerrold

2007 film by Menno Meyjes

1977 science fiction novel by David Gerrold

episode of the animated Star Trek TV series

science fiction anthology

series of science fiction novels by American writer David Gerrold

episode of Superboy (S3 E9)

novel by David Gerrold

book by David Gerrold and Larry Niven

Book by David Gerrold, from 1980

novel by David Gerrold

novelette by David Gerrold

episode of Land of the Lost (S1 E12)

episode of Land of the Lost (S1 E2)

book by David Gerrold

novel by David Gerrold

1972 novel by David Gerrold