How can I use the alpha-numeric keys on the RMT-TX100D remote control be used to enter text into the search field on the Home screen? I've both googled and searched the questions here, but haven't found anything related to the matter so I'm guessing that it has to be quite simple, but I haven't found the way to do it yet. The user manual on Sony's website is unfortunately very far from being thorough.
The TV model is KDL-50W755C.