i've had this remote for sometime,untill today,i had never been able to get it to work with anything.it now works my vcrs but i really need it working magnavox tv,i tried every code,so far all it will do is turn tv off but it comes right back on,wont stay off or it tv off,remote will turn tv on but tv turns its self right back off,anyone ever heard of this?i've never seen anything like it.cant get it to do anything with my fisher home stereo.all the sudden,it no longer responds to the universal remote i've used with it for yrs.remote has new batterys,it still works other electronics its programd to.can a device suddenly stop responding to a remote thats operated it for yrs. nothing has ben damaged,moved,worked on,nothing,just suddenly it will not respond to the remote,not even the vol. which works as a master,controlling vol. on all devices accept my fisher stero now.any ideas?