SamyGO

SamyGO is not a firmware, instead, it's a platform.
Unfortunately your model has no PVR code in it. So you cannot activate it yet. Might be possible in future...
Instead of that, you might want to use NAS / Samba mounting to watch your films instead of buggy DLNA interface.

Nope. Some thinks on it but I don't see any program about it.