What is this have to do with the iPhone?
Why don't you call your cable and home phone provider for details about their caller ID service and how or why names and numbers are displayed from some carriers on your tv.
Again, this has nothing to do with the iPhone or iPhone tips and troubleshooting. .
We both have the same Verizon cell phone service and the same Comcast triple play with caller ID. I'll call and see why the difference.