Well, I came to TBBT late - didn't start watching until it was in syndication - but am definitely a fan. I may have written a few reviews years ago, not sure, but felt the need to write one here. Partly to put my 2¢ worth in and partly to reply to all those giving 1's for their ratings in many of season 10 & 11 episodes.
First, I agree that the show is not as good as it was in the early years and I find myself giving fewer 8, 9's and 10's and more 6's than in the first six or seven seasons. Next, I would also agree there is much more predictability in recent years, too. There is still good humor, Leonard usually comes in with a great deadpan zinger, and the bantering between Sheldon and Amy is usually good for a few yucks.
Finally, as for this episode, we see Amy and Leonard together - ehhh, it's OK, like average - and we see Raj and Wolowitz doing their band-thing - again, nothing too new nor exciting, tho with a few funny lines. But when Penny brings pizza to Sheldon while he is working on string theory....hahahahaa, it is hysterical to see Penny working with him as he is at his white board! So, what would have been a 5 rating, I raise it up to a 7 because of Penny and Sheldon.
Peace out, scouts!