Open a Telnet session and type
opkg install kodi-addons-meta
That will add pvr clients to e2 Kodi.
However make sure on a brand new image, having said that pvr clients never worked properly on e2 and not worth it.
But on new images, if press menu on streams in some addons and click play from then choose gstplayer its first time in a good while stuff uses the internal kodi player opposed to external (but pvr differ, so on honest note, try if you want so you know, but I wouldn't bother)