How to find video frame rate and resolution
The lines may come from the fact that you have exported the video with interlacing. You should generally avoid interlacing for any digital end-user medium.

To find out about certain technical aspects of a video, the program MediaInfo is a very handy tool that can tell you a lot about the specs of your video, including basics like video resolution and framerate. Though it's very unlikely that the root of your issue is the framerate or resolution. Medianinfo can also tell you if a video is using interlacing which is more likely the cause.