Probably not what you're searching for, but youtube is full of recordings of tech talks and I watch them all the time. If I want to hear about a particular topic I'll just search for the topic or "<topic> talk", but I also have a few channels related to conferences and things like that bookmarked. They're only useful once a year, but it saves me from searching randomly when I don't have anything particular in mind: GOTO Conferences, Jane Street (they recently started uploading videos of talks they host at the company), Strange Loop, Curry On!, PapersWeLove, CppCon, InfoQ, Racket Lang, ICFP.

Other than that:

Super Bunnyhop (videogames, very interesting investigative journalism every now and then) https://www.youtube.com/user/bunnyhopshow

Leonardo Da Sidci (videogames, amazing production quality and very introspective topics) https://www.youtube.com/channel/UCujjLOPLW92zVBlhaL8wxPg

Archipel (short documentaries focused on japanese creators and artsy videos) https://www.youtube.com/channel/UC3zoY9LapZERsN7caDKqz0w

Noclip (long form documentaries about videogames, mostly made up by interviews directly with the developers) https://www.youtube.com/channel/UC0fDG3byEcMtbOqPMymDNbw

byoblu (italian "videoblog" about politics featuring lots of interviews and discussions, always to be taken with a grain of salt) https://www.youtube.com/user/byoblu

Then, a lot of comedy channels of dubious value which I'd rather not embarrass myself with on here.