Mini-Series - 1953
- '3 - Very Special Knowledge' (broadcast 1-Aug-53)
- '4 - Believed to be Suffering' (8-Aug-53)
- '5 - An Unidentified Species' (15-Aug-53)
- '6 - State of Emergency' (22-Aug-53)
The Quatermass Experiment (BBC)
The first two episodes of this, the first Quatermass serial, exist. It is likely that episodes three through six were never recorded, due to technical issues.