ðɛɹ hɐvbɪn θɹˈiː dˈɪfɹənt ɹˈeɪdɪˌoʊ ˌædæptˈeɪʃənz dᵻmˈɛnʃən ˈɛks, ˈɛks mˈaɪnəs wˈʌn ænd sˈaɪ fˌaɪ tʃˈænəlz sˈiːɪŋ ˈɪɹ θˈiəɾɚ.
There have been three different radio adaptations (Dimension X, X Minus One and Sci Fi Channel's Seeing Ear Theatre).