Watch The Official Big Bang Theory Podcast

Kunal Nayyar breaks down Raj's Season 4 journey, from his bromance with Howard to Raj's unrequited feelings for Bernadette and waking up next to Penny in the finale.

Season 4 marked a turning point for "The Big Bang Theory" with the additions of Amy Farrah Fowler and Bernadette Rostenkowski, expanding the core cast to seven. Director Anthony Rich joins host Jessica Radloff to discuss the challenges — and unexpected rewards — of bringing the larger ensemble together. They also revisit fan-favorite episode "The Love Car Displacement," revealing how the memorable road trip came to life and sharing the hilarious scene that ultimately ended up on the cutting room floor.