@Guvnor In case you're interested in any of these rules sets, here are the ones I'm currently following, all solo actual play, all relatively short episodes (normally about 30 minutes).
Me, Myself and Die (YouTube): Season 1 - Savage Worlds Deluxe/Mythic. Season 2 - Ironsworn. Season 3 - Dominion/Mythic. Season 4 - Five Parsecs from Home. Currently there is a group game of Blade Runner on the same channel. The presenter is clearly having a lot of fun, which helps, and he is pretty good at explaining the rules as he goes. Weekly(ish) videos with gaps between seasons.
Tale of the Manticore (podcast): B/X D&D with some house rules. Unusual in that it doesn't bother with specific solo rules, the presenter just makes spot rulings as he goes along. This one has the least rules exposition of any of them.
The Lone Adventurer (podcast): Season 1 - D&D 5E/Mythic. Season 2 - Blades in the Dark. As far as rules go, this one focuses more on the solo rules than the RPG the presenter is using.