I am not just asking who you watch by WHY? Yes, the capitals are for emphasis. I want to know what value the videos provide: whether it is rule clarifications, builds, a subclass breakdown, or simply entertainment. Leave a comment and share what you enjoy and why and someone may find something useful.

In before XP to Level 3 because of the memes...

Well, I watch the Crit Cat YouTube channel, mostly because I am staff there and because we are all entertaining people.

As for other D&D things:

• I watched Penny Arcade for their Acquisitions Inc and C Team shows.
• Girls Guts Glory was a fun group to watch play. 
• WallyDM has some good videos, especially about fun traps.

 Interesting that you mentioned Penny Arcade. I used to read the webcomic back in the day but have not viewed their D&D videos.

I would recommend DM advice provided by Seth Skorkowsky. I really would have benefitted immensely watching them when I was a newbie DM. Why I watch the videos is because it is good to see someone who has learned from experience and mistakes sharing his thoughts. I often find myself thinking either I agree, or I haven’t come across that but good to know.

I read Sly Flourish and Keith Baker for D&D Content for setting information and DM tips.

For entertainment I watch Dimension 20 (best watched on their streaming service Dropout)