American Dad! is an adult animated sitcom created by Seth MacFarlane, Mike Barker and Matt Weitzman, debuting in February 2005 on Fox and since 2014 aired on TBS, and nominated for two Primetime Emmys and Annie Awards. The show remains under the creative control of the latter two creators and, unlike the humor found in Seth MacFarlane's Family Guy, revolves less around pop culture references and unrelated gags while maintaining its bizarre concept, focusing on everyday family life.
The show is about the everyday lives of CIA agent Stan Smith and his family, a housewife named Francine, a hippie daughter named Hayley and a younger son named Steve, as well as a German Olympic ski jumper named Klaus who spends the rest of his life in the body of the family's pet fish and a roommate alien named Roger.
Deacon Stan, Jesus Man (S01E07)
Roger gets hooked up to a mechanical feeding system so he can produce more milk for Stan's mind-controlling potato salad.
Camp Refoogee (S03E01)
Hayley gains "The African 20" after staying at the refugee camp for the summer.
The American Dad After School Special (S03E02)
After shaming on Steve's new girlfriend for her weight, Stan realizes he himself has weight problems and tries to work out so that he can look the way he does when wearing clothes. He sees himself putting on more weight than before when he's worked out so much that he has become anorexic. Taking advice from a girl in an anorexia support group, he fakes eating any specific food and instead feeds it to Klaus.
Since Don't Look a Smith Horse in the Mouth (S05E10), he has gained a gigantic amount of weight and become a shut-in.
Buck, Wild (S10E03)
Roger and Klaus become overweight during their road trip.