When you press TV, when on the channel you need, BBC1 HD, etc, when you then press red button for all, there should be another version of that channel there that will work without any sort of glitching or freezing, I am using Grogbuild on my box and it does an ABM rescan every time it reboots, for me thats every morning as I turn the box off at night, but the scan then puts my BBC1 N-I, and UTV HD plus a few others to a version that will either not open or freeze constantly, so I then swap the working version, freeze and glitch free, for the current one that ABM scan has just updated, using the red button method stated at the start of this post, my point is you may also have versions of the channels there that will work for you, and its just a matter of swapping them round.