HN automatically removed the timestamp query parameter, so here's the link to the talk I wanted to share:

https://www.youtube.com/watch?v=EIIJU-ZYL_M&t=1850s

Tandy sold multiple lines of computers under the TRS-80 branding. Which line is this talk regarding? Model 1, 3, 4 or Z80 based Model 2/12 or Motorola based upgraded 12, 16, 16B, 6000 line?

if Tito ever came back looking for parts for his time machine he's in for a surprise this time. really? a whole conference for Tandy asm?