Hi there

You are not the only one to report this.  The following link will explain how to access the web-browser.

http://community.sony.co.uk/t5/televisions/internet-connectivity/td-p/1648559

Cheers

Edit: I have created a FAQ that explains things in a little more detail.  See:

http://community.sony.co.uk/t5/how-tos-faqs-tvs-home-cinema/faq-web-browser-on-2014-bravia-tvs/ba-p/...