Jump to season: 1

Season 1

1x01 - Pilot
1x02 - Threat Levels
1x03 - Stan Knows Best
1x04 - Francine's Flashback
1x05 - Roger Codger
1x06 - Homeland Insecurity
1x07 - Deacon Stan, Jesus Man
1x08 - Bullocks to Stan
1x09 - A Smith in the Hand
1x10 - All Aout Steve
1x11 - Con Heir
1x12 - Stan of Arabia (1)
1x13 - Stan of Arabia (2)
1x14 - Stannie Get Your Gun
1x15 - Star Trek
1x16 - Not Particularily Desperate Housewives
1x17 - Rough Trade
1x18 - Finances With Wolves
1x19 - It's Good to be the Queen
1x20 - Roger n' Me
1x21 - Helping Handis
1x22 - With Friends Like Steve's
1x23 - Tears of a Clooney

Random American Dad Trivia

Steve's original design was much geekier and gawky and he was voiced by Ricky Blitt. Halfway through production, his voice actor changed to Scott Grimes and his design was made to be more attractive, so he would be less comparable to Neil Goldman from "Family Guy" (1999).