[afremont]

Here's a link to a file, but any 720p source (live or recorded) should do it. Played back through the Videos section of kodi, it does the same thing. That seems to indicate a problem with DVDPlayer itself and not the MythTV addon or backend. The problem first appeard in 0822b and applies to 0823 as well.
https://www.dropbox.com/s/t3sag5bum3v8xbs/720p.mpg?dl=0

Can't say I see the problem with this clip. It's only 9 seconds long which is a bit short for analysing.
What exactly do you see when you play the clip?

Bring up the OSD while it's playing and look at the skipped frames count. It increments at about 20 per second. I was watching live TV the other day and I noticed the video seemed a little jerky so I brought up the OSD and saw the skip count rapidly increasing. It didn't do that before 0822b (I back tested all the releases that I had skipped over when upgrading, everything through 0821 is fine). I can give you a longer clip if you need the extra time, but I believe that any 720p MPG2 file (maybe only MPG2) will do that, 1080i and 480i don't do it. Obviously I have the codec license installed or it would be unwatchable from my experience plus OMXPlayer has no problems with it. Previous posts will tell you all my settings and things that I have done to test it. The audio rapidly gets way out of sync. I know it's a little tough to tell with it being a cartoon, but after about one minute there is no mistaking it since it is seconds off at that point.

Here is a bigger clip (should be 5 minutes), it's about 360MB.
https://www.dropbox.com/s/t3sag5bum3v8xbs/720p.mpg?dl=0