The WhatsOn app has a list of supported TVs you need to select but can't work on all of them even if the remote is IR, which is the first requirement. That means it is line-of-site only.
I'm curious if it works with directv boxes.
You can download the direct tv app to watch on your phone...
So we were in a bar last night and I was showing off my new s4. I turned off all the tvs in our area. Bartenders and managers were dumbfounded. This app is pretty cool.