Before Johnny Galecki became a star on TV’s biggest comedy of the 2010s, he recurred on one of the biggest comedies of the 1990s. The Big Bang Theory‘s Johnny Galecki returns to the revived Roseanne next week, reprising the polite and sensitive David Healy character he played in 90-plus episodes from 1992-97. Watch a promo for the “Darlene V. David” episode above.

Darlene, of course, is played by Sara Gilbert, who also stars in the hit new version of the ABC sitcom starring Roseanne Barr and John Goodman. Darlene and David were a couple back in the day and split up at least three times — but eventually they got married after Darlene had their baby. The 15-second promo itself doesn’t divulge much, but here is the network’s logline for the episode: David unexpectedly shows up for daughter Harris’ (Emma Kenney) birthday after being absent for years, forcing Darlene to re-examine their relationship and the rest of the family.

The 2018 Roseanne has slipped in the ratings after a phenomenal start, but continues to dominate Tuesday nights.  The network renewed it for an overall 11th season just days after the premiere, with ABC Entertainment President Channing Dungey saying, “We’re thrilled that America has welcomed the Conner family back into their homes.”