I don't own a Ceton but I do own an HD Homerun which enables me to stream Live TV to my Iphone, Ipad, and web browsers outside of my network through the use of ORB.
The one problem with Orb is that Media Center cannot run simultaneously with Orb if you're attempting to stream live tv.
My set up consists of two USB Hauppage Tuners, and one HD Home Run Dual Network Tuner.
Here is my workaround for using Orb. I have Orb running on my laptop. HD HomeRun is configured to stream to this laptop at any point in time. This enables me to Have WIndows Media Center running on my HTPC while I can stream live TV with Orb as it grabs one of the Network Tuners.
Not sure how the Cetons are configured on your set up but if you have access to Network Live Television, and Orb can pick up your network tuners and stream that data to your mobile devices, then this may be a solution.