I will. However I am very disappointed. So far I thought RPi is very capable for a HTPC with DVB receiving capability. Now I can see it is on the edge when wathcing a single HD channel. I assume paralel recording or timeshifting can be completely forgotten.
Just select deinterlace to Bob (x2) and then set as default for all videos and the problem is gone.
Note, Bob (x2) was the default on Jarvis so you haven't lost anything.
Currently advanced deinterlace is not compatible with some dvb dongles running on the same Pi.