Well, I can see that you like the type of glasses that old man wears. Anyway, I myself have got a pair of them and find them quite suitable for me. As a matter of fact, that type of glasses is called thin metal framed glasses, which is so popular among middle-aged people. You could find them at all large optical stores, such as Walmart, or some websites such as eBay and Amazon. They are typically quite cheap.
Walmart as the biggest retailer around the world and it offers so many stuff to make people's life become much better and more convenient. Walmart also shares thousands of stars' eyeglasses styles, such as Harry Potter styles and Geddy Lee styles. So it is easy for you to get eyeglasses that Gregg Wallace wears and these items must be available with cheap price and high technology and variety designers. Save money, Live better is walmart's slogan and aim. And walmart really does so.