A question regarding this post:
I think I’ve worked out where the station aired them from. From the 70s to the 80s, Warner Bros offered two syndicated sets of Looney Tunes cartoons, referred as “Porky Pig and His Friends” and “Bugs Bunny and Friends” on this page. Combined together, both sets offered 200+ Looney Tunes cartoons to TV stations, with the 1968 colourised shorts making up the bulk of the Porky Pig one.
Moving on to Capital 7 territory, I think they must’ve aired the Speedy Gonzales shorts a lot since a lot of Canberra locals I know remember the character quite well, even though there were very few across both syndication packages.