That Was Then, This Is Dumb (1998)

Helen and Jake's former-hippie friends Willow and Coyote Yeager visit, causing the Morgendorffers to doubt their own value system. Daria and Quinn stick around to use their protest activities against them--and so Quinn can flirt with their son--until Jane invites Daria to help Trent and Jesse sell their parents' old records at a flea market.