Season Six's You Debt Your Life shows in flashback how Stan met Roger.
The episode is called Roger 'n' Me and is from the first season.
The song "Daddy's Gone" is sung by Roger and Steve in the episode called "The Missing Kink," which is from Season 9, Episode 15 of "American Dad!"
Roger wants to buy Dollywood in Bush Comes to Dinner
You Debt Your Life
season 3 episode 15 Four Little Words - hilarious episode
Dungeons and Wagons
Season Six's Flirting with Disaster
meth
Hot Water
season 4 episode 12 called roy rogers mcfreely
They dress up in the episode delorian story season 4 episode 16
Season Eight's Da Flippity Flop has Roger running a home gym.