From ABC report of 1957-58

 From ABC report 1957/-58 p 16 - see here

The most significant development in drama and features was in the increase of television activities—especially since the opening of the new studios ill Sydney and Melbourne.

In all, 24 live plays were presented, most of them an hour or more its length. No other television organisation in Australia has, so far, attempted any thing Ott this scale. Critical and public reaction has been excellent.

Seven of the plays were locally written, and the television adaptations of all productions were done in this country.

The same report said TV plays was 12.58% of drama output - more than cinema movies.

P 71 PLAYS PRESENTED IN TELEVISION DURING THE YEAR:

"A Fourth for Bridge” Denis Johnston
"Fair Passenger"Aimee Stewart
"A Phoenix Too Frequent"Christopher Fry
"The Right Person” Phillip Mackie
"Rope"Patrick Hamilton
"Killer in Close-up No. 1" George F, Kerr
"The Passionate Pianist" Barbra Vernon
"The Duke in Darkness” Patrick Hamilton
"Sound of Thunder” lain MacCormick
"Killer in Close-Up No, 2” George F. Kerr
"The Importance of Being Earnest” Oscar Wilde
“Gaslight” Patrick Hamilton
"Point of Return” A. B. Kingsland
“The Multi Coloured Umbrella"Barbara Vernon
"Chance of a Ghost” James Carhatt
"Symphonic pastorale”Andre Gide
“If It's a Rose” Dario Nicodemi
“The Small Victory” lain McCormick
"Miss Mabel” R. C. Sherriff
"Captain Carvallo” Dennis Cannan
"Murder Story"Ludovlc Kennedy
“As You Are” Hugh Mills
“Killer in Close Up No. 3” George P. Kerr
"Sorry, Wrong Number"Lucille Fletcher

(NB this is year ended 1 July 1957 - 30 June 1958).

The ABC report said “seven of the plays were locally written” - there were George Kerr’s three Killer in Close Ups, the two Barbra Vernon plays… (Kerr was British and the stories were all British but they were written here.)

I’m not sure of the other two. Chance of a Ghost I think was written in Australia, by an American. There were two Iain McCormick plays - he was an Australian working in Britain. Alan Seymour adapted Murder Story - maybe that's how they counted it. Seymour and Carhatt.