4. Stuart Becoming More Vocal
In the past, Stuart has been something of a peripheral character, existing on the fringes of the show and making the occasional appearance here and there. In recent seasons, the comic book store owner has had more prominent roles, such as the scenes where he briefly dated Penny (and even Amy), as well as his almost erotically-close relationship with Raj in series 6. However, he has always been a quiet character, and one who tends to get messed around quite a lot, so it is nice to see him becoming more vocal in season 7. In one particular instance, for example, he dupes Sheldon into paying a grossly inflated price for an Aquaman figure and a squirt gun. We like that Stuart is beginning to get his own back, particularly when it transpires in "The Scavenger Vortex" that the gang no longer include him in their social get-togethers.