I haven't seen any of the latest season yet so maybe they've gotten too quirky, but I really liked the sporadic weird episode in S1-3. I'm kind of a musical episode hater but I thought the musical episode was actually really fun, and I greatly enjoyed watching people enjoy creating something. It's like the pseudo comedy episodes of SG1 or something where the writers and cast are clearly just having fun. I enjoy that in moderation. Did S4 overdo it?