This old google archive is great!  It even has a reference to my first
encounter with Smalltalk:

http://groups.google.com/groups?q=+tvo+OR+tv+OR+ontario+%22bits+and+bytes%22&hl=en&scoring=r&as_drrb=b&as_mind=17&as_minm=5&as_miny=1981&as_maxd=13&as_maxm=12&as_maxy=1985&rnum=1&selm=bnews.hcrvax.190

From: hcrvax!ravi (hcrvax!ravi)
 Subject: Smalltalk 
 Newsgroups: can.general
 Date: 1983-05-09 06:27:49 PST 


This Wednesday, May 11, the TV Ontario program "Bits & Bytes" will contain
an interview with Adele Goldberg of the Xerox Palo Alto Research Centre,
about Smalltalk, Dynabook, and suchlike things.  Don't miss it.
        --ravi


---------

Yes, I was in grade six at the time when this came on the air...I still
remember it, too...the ST-80 demo given on this show was presumably done
on an Alto.  They showed some kind of neat paint program editing a gorgeous
black-and-white unicorn, the MVC interface at work, and even document editing
(cut/paste/undo was pretty neat at the time).  And the book they were editing
was the Blue Book itself!  I had never seen anything like it.

I don't recall the Dynabook being mentioned, however.