It might be good to know that Cannell died in 2010 of melanoma, a change of color to the skin. Early additions had Cannell smoking a pipe while typing on the typewriter; which later became discontinued as Cannell quit smoking.
Most of the early additions had Cannell wearing a sweater while the later versions sported him wearing a polo shirt with the collar stuck up. Shows with this logo were The A-Team, 21 Jump Street, The Greatest American Hero, and several other 1980s shows. The logo has been parodied on shows like The Simpsons and Family Guy.