'If you lost the ability to communicate, what would your life be like? Messages, and the media we use to convey them, surround us every minute of every day. Some are meant for us alone, while others are intended to reach the widest possible audience. Some transmissions are intercepted by unintended recipients and never reach their destination. Others get corrupted along the way.
The Doctor knows how important it is to be understood. Whether he is striving to cure a disease that turns words into gibberish, responding to an SOS from the end of time, or unravelling secret messages encoded into the genetic sequences that make up life itself, this is one Time Lord who always knows how to make himself heard.
Listen up. Get the message. Keep this frequency clear.'
Source: drwhoguide.com (http://www.drwhoguide.com/whotrip28.htm). Sighted: 20/5/11