Great, looking forward to it!
In terms of potential topics that you could cover in future videos, I guess it depends on the direction you want your channel to take and the time/energy that you are willing to invest in it, but personally I think there is a lot to cover if you want it to be become over time a repository of helpful resources relating to the world of fine art printing as well as a source of inspiration for printers or printers-to-be.
Just to give you a couple of examples: on my website I have published a four-post series providing a high-level overview of what is meant by fine art print (a slippery slope, I know), an overview of the key characteristics of the main fine art paper types (contrasting them with RC papers), a discussion about the role and effects of OBA’s and LILIS in photographic papers, and finally an overview of the papers that I currently use for my prints and why I picked them. If you are interested to check them out, here is the link to the first post in the series which in turn includes links to the other posts:
https://www.lightquill.com/-/galleries/tools-of-the-trade/fine-art-prints-part-1-what-makes-a-print-a-fine Given your experience that goes from the wet darkroom days to today’s digital darkroom era, you might consider covering some of that, for instance by commenting about how you feel that today’s papers that emulate traditional wet darkroom papers or printing processes compare to the originals (such as how today’s ubiquitous Barytas compare to traditional Baryta papers or how prints made on today’s platine papers compare to traditional platinum/palladium prints). You might also discuss OBA’s and even more importantly how Mark McCormick’s outstanding work on LILIS has been obscured not to negatively affect commonly used testing methods to determine permanence ratings for fine art or photo papers that are widely referred to by paper manufacturers to support their lightfastness claims.
Another topic that you might consider could be coming up with a series of tutorials for some of the main mounting processes and recommendations about which materials to use (or which to avoid), for example distinguishing between non-destructive archival mounting methods and techniques (T-hinges, V-hinges, etc.) and non-archival methods such as dry-mounting.
Just a few thoughts for you to consider, like I said as long as they align with the trajectory that you intend to give to your channel.
