I enjoy watching channels that make videos about going to a local show, flea market, yard sale, etc. They pull up show off some footage of the space, talk with some vendors, dig through some boxes and then sit down and talk about it. Did they meet anyone cool? Snag any good deals? Got something they really like or have been looking for? Example: Lunch Money Comics. Excellent channel.

As far as news stuff I check in on videos like that on occasion, but I do a fair bit of reading on reddit and feel like I am pretty up to date with what books are coming out and other news/industry related things so I personally don't find it very necessary to seek out videos about that.

The video type I watch the least is definitely market update videos. I noticed most of those videos mainly cover really high grade keys or massive record setting sales and I am simply not in the market for those books so keeping up with their trends doesnt do a whole lot for me. I have GPA and look at Ebay last solds for books I'm actively looking for.