Dont know any software for you . But one tip I hear a lot on podcasts is to import it as 540 instead of 1080. The experts say the visual quality is barley degraded, but the file sizes are half size, and easier on the processor.
If you're watching on a computer monitor, you're likely to be a little closer than if you're watching a TV. So smaller sizes would be OK I think (personally I never watch stuff on youtube etc. full screen).



