It strikes me as an odd title. I guess they mean that they accept plays from outside the City, but it sort of sounds like the one and only, authoritative competition for new one-act plays.
On the subject of theatre:
ELT's Music Hall this Saturday. A table of our own, which is good. Haven't been for a few years, so it's time to practice our booing and hissing.
VDL Awards on Sunday. Theresa and I get to sit on competing tables; mine an underweight one, topped up with people from another theatre company.
EDITED TO ADD: Boroondara Theatre Company doesn't have a web site (that I can find). This makes it rather difficult to find details. :-(