American Dad!

Stan: (about excreting the alien) I pooped it out. This is a reference to Stephen King's Dreamcatcher, in which people who swallow alien spores incubate wormlike aliens that exit the body rather gruesomely through the rectum.

Kokomo The names of places (Aruba, Jamaica, Key Largo, Montego and a place called Kokomo) that Roger (as Parker Peters) mentioned that he has leads where the alien is are from the lyrics of the by The Beach Boys' song "Kokomo."

The X-Files Roger's back story while working at the CIA of having a sister, named Samantha, who was abducted by aliens, is the same storyline of Special Agent Fox Mulder in The X-Files. Roger also has a slightly different version of the I Want to Believe poster hanging in his office.

Rocky One of the pictures Roger sets up is of himself at the top of the steps leading to The Philadelphia Museum of Art with his fists in the air, which is an homage to the movie Rocky.

Roger: Son of a b*tch Superman two'ed me! This is a reference to the ending of Superman II where Superman appeared to go into a chamber that would remove his powers, when it actually protected him.

Roger: You know what, the whole cast--the whole damn dirty pirate cast. Roger is referencing Pirates Of The Caribbean, starring Johnny Depp and Keira Knightley.

Roger: Glass, George Glass! That's Jan Brady's fake boyfriend! This is a reference to The Brady Bunch, where Jan invented a boyfriend to get attention.

Roger: Très jolie, Coco, très jolie" (Very nice, Coco, very nice). Roger is quoting from the Oscar winning 1980 movie Fame.

Parker Peters In this episode Roger goes by the name Parker Peters. This is a reference to Peter Parker who's secret identity is Spider-Man. Like Peter Parker, Roger takes photos of his other identity to sell to the newspaper as a freelance photographer. Whereas Peter Parker takes pictures of his secret identity, Roger takes pictures of his normal identity, making it logical to reverse the name.