[Stereodude]

So you are outputting the 60i 3:2 24p stuff at 24p?

Well, 23.976Hz... But yes.

Do you have to manually select 23.976Hz refresh - or does MPC-HC detect the cadence and then change the refresh rate?

madVR changes the refresh rate to 23.976Hz because forced film mode is turned on. It's automatic when I start playing a file. If I'm playing something that's video I manually change the mode to video with a keyboard shortcut and it will change back to 59.94Hz and deinterlace. madVR also has 2:2 capability, not just 3:2, but I don't have any i50 content, so I don't know how that all works. Another other nice thing is madVR has 6:4 handling capability as well so it can recover p24 from 720p60 also. It won't automatically change to 23.976Hz when the source is 720p60. For progressive content (like H.264 encodes in .mkv) madVR will change the refresh rate to the closest match the TV has to the framerate of the file (you have to tell it what modes it can switch to).

I use Kodi a lot for watching Live TV and I don't think that approach would work for me, but i'ts not a major issue for me as I live in 50Hz land - where we, luckily, have 2:2 25p, so no need to change output refresh rate based on content.

Keep in mind none of this is for live TV. I record nearly all my OTA HD via computer (HDHomerun + nPVR), edit out the commercials, and then watch it later using MPC-HC + madVR. For live TV like the news I use the tuner in the Motorola DVR from the local cable company and let the TV deinterlace or IVTC it.