Further to the above and to answer my own question, based on research on the internet, WMC does not work with DVBT2 HEVC encoded HD TV even when hardware (tuner, antenna, GPU etc.) supports it. As a result from March 2017 (regionally dependant) OTA TV in Germany will no longer work with WMC. Another nail in the coffin, sad to say

and pretty much the end for me. I switched to Media Portal some while back on my HTPC and just used WMC occaisionally on my laptop. For anyone interested Media Portal has recently released a preview version that not only supports HEVC encoded HD TV (works great on the test transmissions in Germany) but also other intergrates the Madvr renderer which will play frame packed BD 3D (in .mkv/mvc format) among other things. I have to say that it is really very refreshing to use a product like Media Portal that is still being developed is well supported and going somewhere other than the grave.
