Fixing audio/video out of sync when editing recorded broadcast
My DVB-T recordings always have this issue. Try MC-TVConverter2!

It is a (old but still reliable) graphical interface for several video tools. Try converting your original ts recording(s) using the MPEG2 HQ setting - I've found this option to be more of a repair than a re-encode, as the conversion is quick and the resultant file size is very close to the original recording.

There are numerous other conversion options, but the MPEG4 one takes a long time to re-encode, even with MPEG4 based ts files. It also has ad detection but I haven't tried it.

You're unable to use an ntfs formatted drive for recording?

Report back on how you go!

http://mctvconverter.vivolum.net/