[allan87]

So as I understand it there's no way to make the new mythtv addon work with 0.27, and no way to make the old cmyth addon work with Helix?

cmyth was removed after helix beta 2. I believe the last nightly that still included it was 11/11. So there's another option: find a good build 11/11 or earlier and enjoy that until myth 0.28 is ready for prime time.

I reiterate that, although your comment indicates otherwise, the the new plugin does work very well with 0.27. The concern some have raised, evidently important to you and others, is that the new plugin can't mark watched shows under 0.27.