Forgot to respond to this until now. And for full disclosure, I was PBL at Seton Hill, and things might be slightly different than Erie.
PBL is very much choose-your-own-adventure, which is great once you get the hang of it, but has a steep learning curve. Basically, you meet 2-3X/week and go over a case with a group and your facilitator. First semester, one case might take several meetings to get through-- you speed up quite a bit by second year. When you complete a case, your group assigns "final learning objectives" from the reading. So, for a first year case on diabetes, you might end up picking the pancreas chapter from physiology, a glucose metabolism chapter from biochemistry, a pathology page run on diabetes, and a pharmacology chapter on diabetes drugs. Some people go into PBL and think it's all about the group meetings, and while those are helpful, it's really all about the reading. Exams are based on the pages you assign. Promethean is right that they're high stakes-- 26 credits for the semester is based on 3 exams, each covering ~700 pages of material.
If you're somebody who needs a lot of guidance, there's nothing wrong with that, but PBL is not for you. Going to the lectures likely wouldn't help you much because A) no guarantee the lecture matches up well with the pages you picked B) PBL's schedule is on a totally different schedule than DSP, so whatever's happening in the lecture pathway isn't likely to do you much good and C) you're not doing the reading you needed to do in the first place. Promethean is also right that there are a lot of online resources out there, even though lectures aren't recorded. A lot of these are super helpful-- I should probably name my firstborn Goljan Sketchy Sattar LastName -- but at the same time, it's important to be wary about resource overload. The temptation exists to rely on these outside sources, which can backfire on you if you end up not doing the reading your exam actually covers.
Edited: grammar