Baker, who had just encountered the Daleks in the field upon his 'arrival', wrly observed:
If we had to walk through a maize maze with a Dalek it would take two hours to film, because the wretched Dalek would fall over every second inch of the journey. Now, stick it on digitally afterwards - a twelve year old with a computer does it for them - and it looks brilliant - very envious!
There will also be a special sci-fi day at the site on the 27th July - see the website for more details.
A report and video of the opening with Colin can be found on the BBC News website.