\begin{frame}{Browsing the History of a File}
  The \cmd{hg annotate} command is invaluable:
  \begin{itemize}
  \item you see when each line was introduced
  \item you can quickly jump back to earlier versions
  \end{itemize}

  History of Mercurial's README file:
  \lstinputlisting[language=]{hg-annotate-readme.txt}
  Better interface in \cmd{hg serve}

\end{frame}