Is there some reliable source of his podcasts on Youtube? Like a hidden channel or something that won't be taken down by copyright requests every 5 seconds?
A search for "Joe Rogan Full Podcast" (Full is a magic word on YouTube for this sort of thing, "Full Movie" "Full Episode" etc) typically works for me, but you may have to warm up the recommendation algorithm so it recommends similar channels to what you have watched before (ie. fly by night channels hosting ripped podcasts).
