Tear down this wall

Source: American Dad!
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There is a different newspaper headline for each episode, usually featuring a topical satirical joke directed at the United States Government, the media, or current affairs (for example, "Pedophilia Down as Childhood Obesity Goes Up", "Israel Pulls Out of Gaza, Gaza Not Pregnant", or "Economy Takes a Turn, Falls Down Flight of Stairs").

Stan then performs a series of cartwheels over to his vehicle. While pulling away from the house, Stan waves goodbye to his family. Upon his arrival at the CIA, Stan leaps out of his vehicle and gestures up to the American flag. During this sequence, Stan sings the lyrics to the show's opening theme song. The final "Good morning USA" line is sung by an off-screen choir.
Second intro theme

Since season 5, American Dad!'s opening titles similarly commence with the shot of the American flag; an approaching scene towards the Smith house; and Stan waking up in the morning in nothing but his briefs, jauntily leaping out of his bed into his slippers and flexing his muscles. However following this, Stan is shown coming down the stairs and through the living room, approaching the front door to leave for work. In the process, he collects his briefcase, keys, and handgun from each of his family members and Klaus, all the while expressing his goodbyes. In these moments unbeknownst to Stan, Hayley attaches a peace sign to his back which Francine removes shortly thereafter. Stan then drives to work.

During Stan's drive to work, Roger surprisingly springs up from hiding in the passenger's seat. In these moments, Roger is shown in disguise, a different disguise for each episode. Roger sings the penultimate "Good morning USA!" line in the show's lyrics before Stan shoves him back down. This causes Stan to lose control of the vehicle and crash into a flagpole outside of the CIA. Again, the final "Good morning USA" line is sung by an off-screen choir.[22]

Closing theme

The final frame of the introduction was changed for seasons beyond the first season. At the end of the credits in the first season, all that could be seen was a big "American Dad!" logo in front of the American flag. In all subsequent scenes, this logo was shrunk to fit the names to the series creators on the same screen.[42]