There is a pattern with this show it seems like. Look at episode 4 of this season, Raj centric, so was 4th episode of s2, s3 and s4. Now we are at episode 9 and its gonna be Leonard/Penny centric, just like last year episode 9 with the Boyfriend Complexity. Also last year was a Shamy episode at episode 10 just like this year. s2 #21 was a Shenny, just like s3 epi21 was a Shenny. s2 and 3 for episodes 7 were Sheldon/Leonard/Penny centric. Fascinating!