Mark Thomas - close to the speed of light

Yesterday (25/9/13) I watched Brian Cox in Science Britannica,online he said he had made a mistake during his piece on the LHC.It turned out that he had missed 4 nines from the decimal percentage of how much the particles at the LHC were accelerated of the speed of light. Whilst the missing 4 nines represent small fractions,the speed of light is so large that the missing digits represent quite a large missing chunk. I remarked on Facebook,making a joke about the missing digits,taking a snapshot of what I had said for back reference. The same evening I was trying to recall the name of the comedian who had taken a balloon over the governments communications spy centre as a protest against covert communication monitoring,I thought he was called Mark something...and tried to hunt him down online. This failed - but I recalled by myself eventually that his name was Mark Thomas. Today, (26/9/13) I found it necessary to look for the snapshot I had taken of my joke about Brian Cox's missing 9's,but could not find it,so I went back to Facebook to generate a new copy,searching for where he had mentioned his mistake. Directly above the entry about the missing 9s was someone else's mention of where they had heard a rumour about The Sky at Night,which Brian is apt to show up on - the source they had used was Mark Thomas's website!