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Impossible to answer "sight-unseen". Sorry.
Bordertown - 1989 Sight Unseen 3-9 was released on:
USA: 9 November 1990
The Clock - 1949 Sight Unseen 4-12 was released on:
USA: 2 January 1952
Eureka - 2006 Sight Unseen 2-9 is rated/received certificates of:
USA:TV-PG
Matinee Theatre - 1955 Sight Unseen 2-28 was released on:
USA: 18 October 1956