I couldn't stop thinking about this so I did some research on it. The reporter was Christopher Mayhew (an Member of Parliament no less!) he took mescaline as part of a Panorama investigation during 1955.
Here's the end of the transcript.
CLOSE-UP OF MAYHEW, AS BEFORE
MAYHEW
Well, er, Humphry Osmond said... that was the difficulty all the time... it was bound to be... of trying to find this bridge of communications between the two worlds of time in which I've been this afternoon, in your presence... and I've failed to do so... not for want of trying... I know, in my lucid moments, that I've failed... but, er... it's because I don't think it can be done, that's all I can say. I don't think it can be done. One can only live in one time or in another...
LONG PAUSE
...and, er... I think, er... (PAUSE) yes, I'm sorry, once again I'm coming back to what I've been trying to say - that I have seen a whole series of things happening, but not in a series. Er, they have been of equal reality, Humphry. Some have been more real, some have been less real, but no... of inequal reality, but they have neither gone in front of each other nor behind each other... there's been no time sequence at all in them. And, for all I know, what I'm saying now, I may have said before... it's obviously... (PAUSE, SHRUGS) ...and er, I'm now becoming tired as well... in, er... I can see, in physical terms... so that, I'm afraid I must disappoint to you again...
MAYHEW SUDDENLY SITS BACK IN HIS ARMCHAIR AND STARES AT THE FAR WALL, WITH A GREAT BIG BENIGN GRIN ON HIS FACE.
DIRECTOR'S VOICE (OFF)
Cut!
FILMING CUTS
You can find out more about it here
http://web.ukonline.co.uk/sotcaa/sotcaa ... hew01.html