I am not able to help on this one but are you looking for both free or paid channels? someone on the forums maybe able to help 🙂
The Horror channel is set to be on freeview soon as OFCOM has given the OK , as to when no one knows yet.
As for BT there have been very slow to add any channels to there service even after freeview made an extra 100 space for them and Talk Talk to the EPG even as there was still space for BT to put more Internet channels before.
As BT have spent very large money on buying moblie phone company EE ( which has it's own TV system ) and now football rights too I would not hold your breath to more channels yet.....shame
You might be surprised 😉
I think they have probably spent a lot less on football than they were expecting and the mobile deal probably won't be rubber stamped by the regulatory bodies till next year...