I even have some thoughts on a few of them.
1. I never really made it a point to check how race-specific abilities work with other factions' units. Surprisingly, everything turned out to be exactly as I thought. But there's an explanation for this – I always preferred the English manual for version 3.1, and the guys there were very careful with their wording. The same can't be said for the translation.
2. In the video about fighting the forces of Darkness, the unfortunate fact that Berserkers cannot be dispelled with Remove Curse (or did I miss something?) isn't really discussed, which is why the Dwarven Shield is one of the most valuable artifacts in the game.
3. The video about item sets is excellent; I even noted a bug in the Lion Set that I had somehow missed before. But in the part about Death Embrace, it should be mentioned that there's an issue with the cooldown resetting to 0.5 after a Shout. In general, there are a lot of disappointments with this Shout – it doesn't scale with level for the Daedra, and the set doesn't work correctly with it.
Also, in my opinion, it wouldn't hurt to discuss the burning question of whether it's possible to upgrade a skeleton to a higher tier for 1 action point