OK, here's the deal. Got a 37" Vizio, and normal source is Comcast HD cable using the little box, not the one with DVR. So Comcast gives you a remote that can select channels do the volume. It's not a smart tv so I got a Chromecast. Now I can juggle remotes and watch appvalley Netflix, Amazon Prime, or HBO GO bc I have HBO on my DirecTV downstairs.

Anyway, I'm wondering if there's any remote App for an iPhone6 that would control everything, or even a "universal"remote or maybe there's a way to program the Vizio remote to control the Comcast box. The Comcast remote has no button to switch sources like from HDMI1 to HDMI2. The Vizio doesn't seem to be able to control the channel switching of the Comcast box LOL. Are you confused? I know my wife is!

Anything to make it easier please.