Image of the Fendahl

The TARDIS is drawn to Fetch Priory where using a time scanner, Professor Fendelman experiments on a human skull estimated to be an impossible twelve-million-years-old.

Last on

Part 4

4/4 Thea has become the Fendahl Core and transforms everyone into Fendahleen.

Sat 19 Nov 1977 18:15 BBC One

See all previous episodes from Doctor Who

  • The Fourth Dimension

    Image of the Fendahl
  • Programme Documents


    Much of the original paperwork for the production of Doctor Who survives. This includes the Programme as Broadcast documents (PasBs) that detail information ranging from running orders to cast lists and music.


    The surviving PasBs were working documents and are not preserved in a pristine condition. So, expect hand-written notes scrawled across the paperwork and similar indications of authenticity. We think they provide a fascinating insight into the history of Doctor Who and we hope you agree… Enjoy!

Buy online

Available on: DVD

From suppliers including: Amazon, BBC Shop

Where to buy

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.

Added. Check out your playlist Dismiss