Enhancing video quality from VHS video tape

submit a screenshot. you can fix colors by reducing some offending colors like magenta with the hue wheel by watching sharp spikes in the vectorscope. and you can use a luma matte to only affect midtones and above with the unsharp tool. it works 10x better that way. if the colors are super off, you may need to use a hue control like in AE or photoshop to separate the wrong hues.

Make sure you understand what the skin tone line is and where it is located in the vectorscope. getting white balance right after the black point, white, grey point, and then color correcting works the best. the cineon filter works well for dark shadows. if you have flicker, I made a flicker removal tool in AE. you can normalize the saturation better with vibrance than saturation and I made a preset that will raise all saturation till all colors are normalized without looking crazy. Once you have all that, and degrain and remove spots, you can use the detail-preserving upscale effect in After Effects to resize larger. So, the best way we can help is if you post a png screenshot.

I found that it was important to create the digital copy by ensuring that VHS artifacts were not introduced. At that point, I was using a VHS to DVD converter that help to stabilize the VHS image.

Perhaps give an idea on what problems that you are seeing. Perhaps a screen shot.

There isn't much that can be done with VHS content. You can try an unsharp mask filter. Maybe take a look at Red Giant's "Instant 4k" but there just isn't much you can do with so little resolution.