The 7th Dimension is the BBC's regular radio slot for science fiction, fantasy and horror.
It is broadcast on the digital radio station BBC Radio 4 Extra at midnight (GMT in winter, BST in summer) on Saturdays and Sundays, and repeated at 4 p.m. on each weekend day.
Most of the programs are full cast dramatizations and the remainder are book readings.
The Seventh Dimension has hosted both standalone stories and serials.
A few Seventh Dimension shows are new commissions, such as Undone, The Spaceship and Planet B, or new acquisitions like Night Terrace.