Not on the same day (not even the same year), and there was a little contextual editing (e.g. the no news supers for 7, 9 and 10) for entertainment purposes 
Copy and pasting the YouTube description:
Clips are from Seven News and Today Tonight Adelaide (April 2017), Ten Eyewitness News Adelaide (September 2015) and Nine News Adelaide (May 2017).
Nine’s clip was if I recall the first bulletin using the new Adelaide set and there was a long break waiting for ACA. 7 were for a little while having technical issues on one day of the week, over several weeks, but this all seems to be fixed these days 
Originally posted in tongue-in-cheek mocks: Tongue-in-cheek mocks - #337 by marquisite