The multimedia/pvr250 and multimedia/pvrxxx drivers need the kernel patched to function properly. This is confusing for not so savvy users, and an annoyance for others ( for example when updating your system, you will have to go through this again ). As far as i have been able to verify, this patch does not cause any harm to other iicbb users ( bktr for example ).
Fix: Please see attached patch ( which applies cleanly for 6.x as well )
How-To-Repeat: Install multimedia/pvr250 or multimedia/pvrxxx
the ports have been removed