Fantastic thread Dom, and I have subscribed to the history threads you have recommended. Funny really, I never even thought that stuff would exist as a podcast. Need to open my thought process somewhat! I will also give a safe for work rating.
RPG wise I listen to:
The Good Friends Of Jackson Elias (I am a patreon backer) NSFW - often has loads of F bombs.
Savagecast - Approx Running Time 45mins was month;y, now much more infrequent. Two US convention GMs talking about Savage Worlds, with news, tips,rules Q&As, and up and coming US conventions. SFW
The Secret Gaming Cabal (see below in boardgaming) channel also has two RPG podcasts in their main feed (ran by at least one of the Cabal with some of their RPG friends):
Lords Of The Dungeon - a monthly chat about what they played, and reviews of systems/supplements/ game styles. Mainly focused around D&D 5e, but they do play Fate and Savage. SFW
Dungeon Masters Ludos - only just started, a monthly chat, this is a show dedicated to DM tips, system agnostic. SFW based upon listening to one episode!
Boardgaming wise:
Dice Tower News (I am a patreon backer)- Approx Running Time 15mins a weekly show about events that week in the boardgaming world, plus mentioning some up and coming Kickstarters . SFW
The Dice Tower (I am a patreon backer)- Approx Running Time 90mins there are to shows reviewing games, running on alternate weeks, Tom Vasel(the Dice Tower founder) & Eric Summerer one week, Suzanne Sheldon & Mandi Hutchison the alternate week. SFW
Board Games Insider - a monthly(ish) {often longer gaps)Approx Running Time 30mins show by Ignacy Trzewiczek(Portal Games CEO and main games designer) and Stephen Buonocore( Stronghold Games CEO) talk about the boardagems industry, from financial reports, to the new hotness, to what they have been doing with their companys.
Rolling Dice & Taking Names - Approx Running Time 90mins a biweekly show, very casual in style, I find them highly amusing, almost a bit like 'The Odd Couple Talk About Board Games'. Again more boardgame, kickstarter hotness. SFW
The Secret Gaming Cabal Approx Running Time 200mins - this biweekly show is a group of up to 6 guys chatting about games they have played, in depth game reviews, industry and kickstarter news. It normally runs over 3 hours in length, so gets me through many car journeys to work to listen to it all. The bad thing is that they are loads of them on there, although that is also the good thing, as you get so many different POVs. NSFW - Only very occasionally is it NSFW, but does have some mild profanity on.