When installing the xbmc there is no live tv section available. It is related to the xbmc-9999-nomythtv.patch. When this patch is commented out in the ebuild the live tv is available and pvr clients can be configured.
Portage 2.1.11.1 (default/linux/amd64/10.0/desktop, gcc-4.6.3, glibc-2.15-r2, 3.4.3-gentoo-performance x86_64) ================================================================= System uname: Linux-3.4.3-gentoo-performance-x86_64-Intel-R-_Core-TM-_i7_CPU_950_@_3.07GHz-with-gentoo-2.1 Timestamp of tree: Tue, 26 Jun 2012 01:30:01 +0000 app-shells/bash: 4.2_p29 dev-java/java-config: 2.1.12 dev-lang/python: 2.5.4-r4, 2.7.3-r2, 3.2.3-r1 dev-util/cmake: 2.8.8-r3 dev-util/pkgconfig: 0.26 sys-apps/baselayout: 2.1-r1 sys-apps/openrc: 0.10.3 sys-apps/sandbox: 2.5 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.11.5, 1.12.1 sys-devel/binutils: 2.21.1-r1 sys-devel/gcc: 4.2.4-r1, 4.6.3 sys-devel/gcc-config: 1.7.3 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r3 sys-kernel/linux-headers: 3.4 (virtual/os-headers) sys-libs/glibc: 2.15-r2 Repositories: gentoo x-olznet-test x-olznet vdr-devel ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/openvpn/easy-rsa /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.3/ext-active/ /etc/php/apache2-php5.4/ext-active/ /etc/php/cgi-php5.3/ext-active/ /etc/php/cgi-php5.4/ext-active/ /etc/php/cli-php5.3/ext-active/ /etc/php/cli-php5.4/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=native -O2 -pipe" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--quiet-build=n --autounmask=n" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles news nodoc parallel-fetch parse-eapi-ebuild-head protect-owned sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.UTF8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j9" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage/olznet-test /usr/local/portage/layman/olznet /usr/local/portage/layman/vdr-devel" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="7zip X a52 aac aalib acl acpi aim alsa amd64 amd64codecs apache2 apm audiofile avahi bash-completion berkdb bluetooth branding bzip2 cairo cdda cddb cdparanoia cdr cgi cli consolekit cracklib crypt css cups cvs cxx dbus dga doc dri dts dv dvb dvd dvdr dvdread emboss encode exif expat fam ffmpeg firefox flac fontconfig fortran ftp gdbm gif gimp glut gmp gnome gnome-keyring gnuplot gnutls gphoto2 gpm gstreamer gtk gtkhtml hddtemp iconv icq icu ieee1394 imagemagick imlib jack jadetex java java6 javascript jpeg jpeg2k kde lame lcms ldap libgda libnotify lm_sensors lzo mad mime mjpeg mmap mmx mng modules mono motif mozilla mp3 mp4 mpeg mplayer mudflap multilib musepack ncurses networkmanager nls nptl ogg openal opengl openmp osc oscar oss pam pango pcre pdf php png policykit posix ppds pppd pulseaudio qt3 qt3support qt4 quicktime readline scanner sdl semantic-desktop session slang spell sse sse2 sse3 ssl startup-notification svg syslog tcpd theora threads tiff tk truetype udev udisks unicode upower usb v4l2 vcd vnc vorbis wavpack wxwidgets wxwindows x264 xcb xcomposite xine xinerama xml xorg xscreensaver xulrunner xv xvid xvmc zlib" ALSA_CARDS="hda-intel" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" DVB_CARDS="dibusb-usb2 usb-dib0700" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LIRC_DEVICES="devinput lircdevinput" PHP_TARGETS="php5-3" PYTHON_TARGETS="python3_2 python2_7" RUBY_TARGETS="ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="nvidia nouveau" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
if you want pvr, then USE=pvr
