Unsung Heroes idea seems pretty nice. Remixer Interview could also be fun, but that isn't really focused on VGM. The VGM Critic idea is also nice, and a good thing would be to have a remixer maybe talk about how he would approach that theme if he were to remix it.
My guess is that this would have to be some HQ stuff, and unfortunately I only have two webcams with questionable quality
If the quality isn't an issue, I'd definitely like to make some material. I don't know if I'd be able to make a video every week, but a good idea could be to rotate hosts or have multiple people discussing at the same time, like on Talkback, but with post-production and stuff like that.