I'm having the exact same problem (with a different TV), and I did read the sticky on this section to do with HDMI setup, but it's far too technically and confusingly worded for me to make sense quickly of it. If it's any help to anyone trying to help, the RPi can't retrieve the TV data from the TV ...

Hi there, So I'm a total newbie who was gifted a RPi Model B this Christmas, and I've successfully installed and loaded up Raspbian using the NOOBS setup, however the resolution on my TV (connecting via HDMI) doesn't match very well, meaning I have a lot of wasted space on the screen and the text is...