TVSquad report that the BBC channel on YouTube will be making David Tennant's 2005 live performance of The Quatermass Experiment will be available over Christmas.
Click here to view the whole programme.
The programme was performed and aired live and the production team deliberately chose stage actors who could deal with that type of pressure. Due to adrenalin the play actually under-run by 14 minutes on the night!
Most fans recall the part where David Tennant runs around a corner, stumbles and almost falls over!
