I can't speak on specifics to Uverse, but I would doubt you can get around the "both tvs change" issue.
What you really need is to find a pro to get you into a control system that gives you port routing. Brands like Pro Control and URC will offer nice remotes and separate processors do what you need.
"There's a big difference between winging it and seeing what happens. Now let's see what happens." ~MacGruber
