Okay, so my three coins dropping into the discussion (heh):
So firstly, I think the HLP logo in the channel would look better displayed against a black/dark background (but I'm swayed, I'm using Youtube dark mode all the time

).
So, what kind of content can we expect in this channel? Because it's obvious for me that it's going to feature some kind of FSO engine technical novelties or maybe mod trailers/teasers? I have got a few ideas on what we can include here too, and how we can separate this into playlists. For example, create playlists like these:
Getting started! - videos on how to set up Knossos and FSO, some sort of showcase of how FSO functions and settings affect the game, ect... Of course, it should be slapped on the main page.
Campaign playthroughs - preferably one playlist per campaign/mod, the videos should consist of the gameplay with some tips and information conveyed through subtitles or something like that (like in that one MattTheGeek's video on Her Finest Hour), with maybe multiple videos per mission to showcase possible different approaches in more complex missions. Of course, everything recorded with as much FSO graphical goodies as possible

Gameplay tips and tricks - about: how to get better at playing FSO. Maybe showing some AI behaviours, comparing stats ect.
Freespace Open news - I think this would be a nice place to show off the new functionality and features of FSO when they're introduced. For example, things like Axem's moving arms Sathanas or cloak shaders. Or The E's videos on implementations of HDR/PBR in FSO.
Mod trailers/teasers - just as the name says. If any new big mod gets a trailer or something, it should be featured in this playlist.
The fun corner - funny Freespace videos, like that musical Shivan beam. Maybe some memes or funny bugs?
Modding tutorials - videos on how to set up mods on Knossos, use FRED, PCS2, make models, write scripts ect. ect. And I think Asteroth's (?) FRED tutorial streams could fit here?
Interviews and discussions - As the name suggests. I think the dev commentaries from one of BP-related channels and Firesteel's videos would fit in.
Maybe there would be even place for some streams, like Firesteel did on Twitch earlier?
I also think that there's a better way to upload videos than just be provided with a video file and having to upload it yourself. I think Youtube allows for multiple users to use the same channel and upload videos to it, but I'm not sure how that exactly works. This would eliminate the need to effectively upload the same video twice and the requirement of your presence to make uploads.
There's also a question whether you're thinking of bringing old clips from other users over to this channel, or just inserting them in playlists. I personally think it would be the best if every new FSO video was appearing on this specific channel. Maybe we could negotiate a bit with people who are making Freespace videos on their own right now so that they would entirely move their videos here?