[Milhouse]

@Milhouse Did go back a few more releases. #1111 (11-Nov-2017) is the last working release without the stuttering. Hope this helps. If you need anymore infos or logs from me, just let me know.

So just to confirm, #1111 is good, #1112 is bad?

There was a big "PVR Client cleanup" in #1112:

• XBMC:
  • [PVR] PVR client cleanup and improvement (PR:13040, 2 commits, 5 files changed)
    

which seems like a candidate, but not sure why it would affect only pvr.zattoo.

#1112 also bumped the kernel to 4.14.0 but that seems a less likely cause, however you could test #1106x which is based on 4.14-rc8 to be sure (this should not have the stutter, assuming they are caused by PR13040 which is only in #1112+).