Seconding this. Great for free flow rewatches and passive listening while doing stuff that tie up hands. Even better if the condensed audio can be downloaded to play offline, but maybe there are some copyright issues with that. There are some programs out there that do it, but they’re all too complicated for me to figure out. I like LLR intuitive ease of use #1.
Looks like this idea has been around a while and lots of community support 
Continuous playback but skip parts with no dialogue