The serious articles are still reasonably neutral and fact based, at least. The thing that strikes me most reading BBC articles is there's very little interpretation. Compared to other outlets is much more "This is what happened and some background context". Obviously what you choose to present as the background context is subject to bias (and what's more can be very difficult to detect), but there's very little analysis that could depend on the viewpoint of the author.

I emphasise this again though - compared to other outlets. I'm not saying it doesn't happen, I'm saying in my experience they have a good system to minimise it.