Hoffmann's reflex. For the distal sign of nerve regeneration, see Hoffmann's sign. In medicine, Hoffmann's reflex, named after Johann Hoffmann, is a finding elicited by a reflex test which verifies the presence or absence of problems in the corticospinal tract.
Pinwheel was re-launched as Nickelodeon on April 1, 1979, and despite its prior history on the QUBE system under the Pinwheel name, Nickelodeon has declared that 1979 is the network's official launch year.
The company was originally formed in 1944 by MGM animation directors William Hanna and Joseph Barbera and live-action director George Sidney as Hanna-Barbera Enterprises in order to produce sponsored films and later television commercials.