just got this figured out and thought i'd post how i did it.
create shortcut for it, then right click on the shortcut and got to properties then add this line to end of target. "--sout file/ts:C:\where\ever\you\want\to\save\capture.ts"
e.g my target for vlc is now
"C:\Program Files\VideoLAN\VLC\vlc.exe" --sout file/ts:G:\captures\capture.ts
now load up the TM webui, choose the channel you want from EPG then click the VLC button in webui. and chose save file on "video.m3u" when asked
now double click the shortcut you edited for vlc and an instance of vlc will start, now just click and drag the video.m3u you saved onto that vlc and it will save to where you set it.
when it is done recording you can then play the file back via a mounted network share on your TM as it is the untouched .ts file, played fine on my TM600 with a capture from channel 4.
also you will need to rename that file before recording again or it will just record over it as its set to always record to "capture.ts"
probably better ways of doing it but ohwell