[Talguy]

The only way I got this working for me was to use Eventghost. Eventghost would read in my key presses and then if it determined I pressed the Live TV button on my remote it would send a JSON command to xbmc. The command was Input.ExecuteAction(playpvrtv).

See this post.

Action IDs

FYI, I am on windows 7, using Eventghost as my control server software combined with a Tivo Slide Pro remote (only good RF remote I've found)