Selling Out - S1-E9
Frasier: Roger, at Cornell University they have an incredible piece of scientific equipment known as the Tunneling Electron Microscope. Now, this microscope is so powerful that by firing electrons you can actually see images of the atom, the infinitesimally minute building blocks of our universe. Roger, if I were using that microscope right now, I still wouldn't be able to locate my interest in your problem.
Suggested correction: First, not every single person from one area sounds the same. People can be influenced by a parent/other family members from different areas. I am native to the Southern region of the USA, but one of my parents is Northern. I have been told that I don't sound like a stereotypical Southerner. We don't know anything about Clive's family. Second, I have seen quite a few movies or TV episodes with actors whom I know to be actual British people, and Clive doesn't sound much different than any of them.
I am English and believe me that accent is the worst example of English I have heard in my life.