tvheadend : Tvheadend is a combined DVB receiver, Digital Video Recorder and Live TV streaming server ( http://www.lonelycoder.com/hts/ )
xmltv : Set of utilities to manage TV listings stored in the XMLTV format. ( http://membled.com/work/apps/xmltv/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a gbin
For Paludis use this rsync : rsync://gentoo.zugaina.org/gbin-portage
If you have a problem : ycarus(-at-)zugaina.org