Processing captured VHS tapes

[Selur]

Looked at the clip.
Since it's wrongly flagged, you should enable 'Filtering->(De-)Interlace/Telecine->Deinterlace/Telecine Settings->Overwrite input scan type to' and set it to 'top field first'.
Just for deinterlacing I would enable 'QTGMC Vapoursynth->Bob' and set 'QTGMC Vapoursynth->Preset' to 'Slower' and enable 'OpenCL'.

If you want to also try to cleanup the source a bit I would recommend to:

• enable 'Filtering->Synth auto refresh'
  
• enable 'Filtering->Filter view'
  
• enable 'Filtering->Vapoursynth->Misc->Preview->Split View'
  
• set 'Filtering->Vapoursynth->Misc->Preview->Split View->FilterView Placement' to 'interleaved'
  

and open the Vapoursynth Preview.
This way you can switch between unfiltered and filtered frames to easier see the difference.

Cu Selur

Ps.: Seeing the tons of problems the captured content has you might want to check out forum.videohelp.com there are a bunch of folks you probably can advice on better capture hardware. Do not misunderstand me there are tons of filters which can help to get the content more viewable, but the quality probably could be way better if the capture was better to start with. (I doubt you can for example get rid of the thick black halos through normal filtering.)