Patricia Richardson, Richard Karn and Debbe Dunning will join Tim Allen for a special reunion in the season 2 premiere of ABC’s “Shifting Gears” this fall, bringing together key cast members from the beloved 1990s sitcom “Home Improvement,” Parade reports.

Home Improvement star Patricia Richardson has changed so much since her days on the Emmy-winning show, which ran for eight seasons and cemented itself as one of the defining sitcoms of the '90s. See details.

Debbe Dunning played Heidi, the "Tool Time girl," on the show hosted by Tim Taylor on "Home Improvement" from the show's third season until the series ended in 1999.