I may have it…
Listed under “Toowoomba”
Looks like DDQ shut down at midnight during the week, presumably to allow midnight test transmissions on Channel 0 (as TVQ was testing on 10 at the same time). Although we don’t get to see what the test programs were (TVQ listed theirs).
Then Friday (9 September) being the last day for Channel 10, and Saturday (10 September) being the first day for Channel 0.
They’d also changed the heading from “Toowoomba 10” (which they had previously) to just “Toowoomba”. Looking at later issues (from 1989) they still just left it as “Toowoomba”.
Source: Scene On TV (The Sunday Mail)