S20, EP5 "Brief Encounter"
When Peter and Quagmire accidentally switch underwear, they begin to mimic the other's behavior; Stewie and Doug agree to commit each other's murders.
S20, EP4 "80's Guy"
Impelled by nostalgia, Peter re-creates movie scenes from his favorite decade; Stewie and Doug compete to retrieve a Frisbee stuck at the top of the jungle gym.
S20, EP3 "Must Love Dogs"
Quagmire meets an avid dog lover, and pretends Brian is his dog in an attempt to win her over; Chris helps Stewie track down the culprit who stole his Halloween candy.
S20, EP2 "Rock Hard"
While at an old record store, Peter and the guys recount tales of three rock legends: Jim Morrison, Muddy Waters and Elton John.
S20, EP1 "LASIK Instinct"
With her vision waning, Lois elects to get LASIK surgery but exploits her new disability for monetary gain; Peter, Chris and Stewie must partake in all the activities with Doug that his father neglects.