2nd episode was alright (not as good as the first one), bit with the video/guitar was good. I must say even though these are nowhere near as good as it once was I'm still pleasantly surprised with the new series so far.
As for my favourite season/episode, would probably go with Season 5 or 6 (too close to call) with my favourite episodes being either 'Back to reality' or 'Gunmen of the apocalypse'.
Agree with this entire post. 2nd ep was alright but not as good as the 1st ep of the new season, and so far I've been pleasantly surprised by the new season.
Back to Reality and Gunmen of the Apocalypse are two incredible episodes.