Can't install TVheadend

[billythekid]

Hello guys,

I can't install TVHEADEND i have always :
sudo apt-get install tvheadend
[sudo] password for xbian:
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package tvheadend

Someone can tell me why ? (i'm not very aware of xbian but some of you have installed tvheadend .. so how ?)

Many many thanks

KR
Olivier