Peter: (On doing Time Crash) I loved it. When I got into my costume, which they created - most of it was real, though they had to buy another hat – I felt a bit out of place, because I felt that my costume was designed to be overly 'BBC Television Centre Studio', and suddenly I was on this proper atmospheric set. David was dressed in this cool dark outfit, suit and tie, stuff like that, and I was in pyjamaed Victorian garb, hat…so it took me a bit of time to get used to that. But once I got into it I had a great time doing it. He was a bit in awe of me because I was 'his' Doctor, I was in awe of him because he's a terrific actor and I was on his territory. So in a way it kind of balanced out. There was that wonderful moment you always kind of get at the read-through; people first of all brace time by showing off the set and saying 'First of all we'll start out here, and then this is the way up' and so on, and then eventually they say 'Okay, shall we just try a run-through of the lines?' . And the moment you run through the lines, it's great. It was all very quick. The only thing I felt about it was that we are both so quick in terms of speed...I timed it at something like ten minutes and it ended up as just under eight minutes - we just zipped through it.