Something like this would work and would have waaaaay more features:
https://www.ebay.com/itm/298352788293
Basically you'd press the button on the front for the setting you want to adjust and it's all just the one knob to move things.
Even though it is a format converter, you can set it to do NTSC to NTSC. Also has YC delay, masking of lines (useful to hide head switching noise in realtime)
Not sure what your intended budget is though. They are big and heavy, but they can do a lot including being your ADC (taking S-Video or composite as an input and outputting SDI). I haven't really tested mine for line TBC functionality, but they do work as frame TBCs. Also has legalizer functions, noise reduction options, etc.
Probably not what you're looking for if you absolutely need it to be compact/silent/or you want a dedicated knob for each proc amp adjustment.