Brian Cox has presented loads of stuff on British TV.
Richard Dawkins needs no introduction.
Simon Singh has written lots of books and presented many TV shows.
I'm sure the Gimp has the functionality to shift a rectangular part of an image 1 pixel to the right. But despite wasting over an hour (yes, really) trying to figure out how the hell to do it, I just couldn't.
I tried Paint.net instead, having never used it before, and did the job in 20 seconds.