shutter speed for video can be a confusing concept at first, but its actually very simple once you wrap your head around it. just think about it, all a video is is a bunch of pictures. each pictures needs a shutter speed and apertured. the thing is, the shutter speed has to be equal to or higher than the frame rate (otherwise it wouldn't be able to take enough frames to keep up with the frame rate). so the lowest your shutter speed can be is 1/60 if you're shooting 720p60p. and if you go higher than that, there will be times between frames when the shutter 'closes' and stays 'closed' until it's time to take another frame. of course when you're shooting video it's not like an actual shutter is opening and closing.
a lot of people follow the 180 degree rule, which means your shutter is double or a multiple of your frame rate. so if you're shooting 720p60p, you would want your shutter speed to be 120. this is a supposed to give a nice feel to the footage. slower shutters will give your images motion blur and produce a film-like image. higher shutters will give you crisper slow motion but produces more digital looking footage. so it's really up to you. i use higher shutter speeds for action and lower ones when filming lifestyle.
as for aperture, i've heard that a lot of lenses are at their sharpest around f/6 (i believe?). That's a pretty solid value since it still lets a decent amount of light in and gives you solid depth of field to work with. i kind of like depth of field porn, so i like to shoot wide open or close to wide open a lot when filming lifestyle type stuff. for action, i like to go more toward something between f/6 and f/11
