It's good that you had a spare splitter to test with. I doubt that most folks have one lying around. I had mine installed by a tech (I got screwed around so long with lies and such that when I got hold of some higher level folks they gave me a free technician install so I went with it and got the splitter tossed in.) I would hope that, should my splitter fail, it would be replaced for free.
Madness takes its toll. Please have exact change.