You can see it has police boxes on it with daleks.
You can find the pattern here. My sister likes it very much and has made a number of them. (I think she said eight the last time I talked to her!) The pattern shows you how to do colourwork working with one colour in each hand (essentially knitting continental with one colour and English with the other). It sounds like she has been converted!
Here's a little peak at the inside of the hat and her impeccable stranding:
|I love it when the inside looks as well attended to as|
the "good side".