I copied your TS file to the "Recorded TV" folder, and to the "Videos" folder, and used "Import recordings" in "TV Server Config" to load the file into the TV Server database (so that the recording would be visible in the "Recorded TV" panel in MP).I would be appreciative if someone can play the file and see if they can see the subtitles in mediaportal and if they are a single colour for you.
I also disabled DVB subtitles, and enabled CC subtitles in "MP Config".
However, I saw no subtitles at all, and I was unable to enable them. Whilst playing the recording, pressing the INFO button on the remote should give a pop-up that allows you to navigate to a Context menu where you can enable subtitles. But on my system, "Enable subtitles" was not offered as a choice. This was true both for "Recorded TV" and for "Videos".
Unfortunately, MP currently lacks a developer who is expert in the TV support, so I don't think that there is anyone who can help you with this.
-- from CyberSimian in the UK