Syncing remote issue

[#1]

I have 2 Fios remotes.  I think one of them is synced to both TV's.  Now I can't sync the 2nd remote to the tv I want.  

How can I fix this?

[#2 · Accepted solution]

Go to menu, settings, voice control, food TV voice remote, program fios TV voice remote, reset remote setup. Do that for both remotes. Re- pair one remote, turn that box off, re-pair the other remote to the other box. That should do it.