John Lithgow, a veteran actor, is rediscovering his performance in "3rd Rock from the Sun" 30 years after the series ran from 1996 to 2001. The series, which followed a group of aliens posing as a human family in Ohio, won multiple awards during its run, including several for Lithgow's performance. The show's former co-star, Kristen Johnston, praised Lithgow for teaching her a graceful, cool person.