How to find out the resolution before purchase

[epizoic]

Hello, How do I find out what is the video resolution before clicking the purchase button. Too many times am purchasing with the missing resolution that I want.

[Kapwn]

You can switch a 4K filter button in the members area. That would indicate all the 4K videos.

Then the trailers will tell you what is the quality of the scene. If there is no 1080p, chances are the video will not be available in that quality.