youtube-viewer (browse YouTube videos from a terminal or GTK UI)

Youtube Viewer is a dedicated application for searching, viewing, and
downloading Youtube videos, using wget for downloading and MPlayer for
viewing. It has been written in Perl and plays videos from Youtube at
the best quality available without using a flash player.

Optional dependencies:

perl-gtk2 and perl-File-ShareDir - for gtk-youtube-viewer.
perl-Text-CharWidth - for better formatting in the terminal.

This build always includes the command-line client (youtube-viewer). For
the GTK client (gtk-youtube-viewer), install perl-gtk2 and
perl-File-ShareDir before running this script. If you have them installed
but don't want gtk-youtube-viewer, you can set GTK=no in the script's
environment.

To force gtk-youtube-viewer to use your preferred terminal for downloading
with wget and watching in a terminal, set TERMINAL in the script's
environment (e.g. TERMINAL="xterm" or TERMINAL="urxvt").