Interesting video, the debugger software looks to be pretty powerfull.
To bad the lcd display has issues.
The pixel clock for the "a" part looks to be bad.
The other parts also look bad don't know if that would be software related. Maybe another (data?) line also has issues.
Question of course is what causes the problem
Bad connection in the glued connector (most likely)
Lcd gone bad
Something on the board gone bad
It might be repairable, but I wouldn't feel confident toying around with such a rare piece of equipment.