Now there is this fun Knock Know Doctor Who Is Here T-Shirt.
You can get this funny Doctor Who t-shirt in styles for men, women and kids and it comes in lots of colors and in sizes to keep you all happy.
On the t-shirt it has a fun text on it that says “Knock knock, who’s there? Doctor, Doctor Who? Yes,”.
So you can can have a knock knock joke Doctor Who t-shirt and it maybe different but that makes it funny and different.
If you are a Doctor Who collector and fan then you should check this out.Get your Knock Know Doctor Who Is Here T-Shirt