Deep Throats is episode 23 of family guy season 04. It was originally aired on April 9, 2006.
When Meg lands an internship with Mayor West, Brian argues that he’s corrupt. Determined to expose his shady ways, Brian and Stewie go undercover and discover that Meg is in deeper than they thought. Meanwhile, a local talent show brings Peter and Lois back to their folk singing days. Unfortunately, they also revert to their hippie ways and Chris must stage an intervention.