Certainly, and the same applies to other types of media. I can tell you that approaching a classroom lecture that doesn't involve homework or testing, like a f

Certainly, and the same applies to other types of media. I can tell you that approaching a classroom lecture that doesn't involve homework or testing, like a free online lecture, with the same casual attitude as one reads a mildly interesting book will give you the same failure to retain the information. I know this because I've done it many times myself.