CinemaBlend Copy to clipboard Even though Tim Allen and Richard Karn hadn't worked together on a full-time basis in over 20 years prior to 2021, it was already obvious that the relationship they built up on Home Improvement's eight-season run was one to last a lifetime. The evidence was on display during Karn's pair of Assembly Required. Assembly Required definitely isn't an attempt to simply ape Home Improvement's "Tool Time" segments, but the competition series definitely does derive a lot of its enjoyment from the actors' dynamic as they witness and judge a slew of home builds from its batch of contestants. During this year's Television Critics Association panel for