Mr. Wizard's World, a faster-paced version of Watch Mr. Wizard, developed by Don Herbert, was shown three times a week on the then rising kids cable channel Nickelodeon. Once again, the revival was produced in Canada (this time in Calgary). The show produced 78 episodes from 1983 onwards, and continued to run thereafter as reruns. During its airing on Nickelodeon, Mr. Wizard's World was the channel's #3 rated show in 1983 (behind Livewire, and You Can't Do That on Television). The show was also famous for its Ask Mr. Wizard segment where Mr. Wizard answered questions sent in by Nickelodeon viewers of all ages. Episodes of Mr. Wizard's World were re-aired in 2005-2006 on the digital cable channel The Science Channel. Mr. Wizard's World still frequently airs on The Science Channel, and is considered a candidate for Nickelodeon's "Nick Rewind" DVD/VHS release. Don Herbert once said: "My time on this Earth is getting shorter and shorter each day, but no matter how old I get, and even when I am dead, Mr. Wizard's World will never die". This series was canceled in 1990, though reruns continued on Nick at Nite until 1995 and often in early morning time slots right after Nick at Nite finished, through at least 1997. In 1994, Herbert developed another new series of 15-minute spots called Teacher to Teacher with Mr. Wizard. The spots highlighted individual elementary science teachers and their projects. The series was sponsored by the National Science Foundation and was shown on Nickelodeon. Selected episodes of Mr. Wizard's World are available on DVD in 8-Single Volumes including 4-Episodes on each DVD. Gift Box-Sets are also available from Mr.Wizard Studios Inc.
Another show, entitled "Bill Nye the Science Guy" debuted in the 1990s as a very similar show (a spiritual revival of sorts). The show was shortlived, but was re-aired on Noggin.