I think someone has been watching the reruns that have been on a lot lately (from the ABC cashing in on their new Gold Logie winner), because applications closed May 19th for the next series.
I applied earlier this year while they were taking applications for series 5 (to be filmed September-October). It was a very thorough online application form, and I was invited to attend the group auditions that were held in different capital cities (some people flew a long way to get to the Brisbane one).
They had about 100 people in the Brisbane group (on the 29th of May - fortunately it was a Saturday, so I could get to it), and they only took 15 people from the group to go through to the show (probably the same amount for each other city).
When they were interviewing me at the group audition, they seemed concerned that Transformers was too great a topic to cover, as they were asking me a lot of questions about what areas of the Brand was I most familiar with, so that they could probably focus questions on that (like the actual toys, the designers, the original cartoon, the recent movies).
Suffice to say, I didn't get through, otherwise I would have been telling you all to look out for me on the show early next year.
(it's certainly a long process - applications open while the show is on at the beginning of the year, the audition phase is May-June, filming is Sept-Oct, and the episodes then screen around Jan-March)
So after experiencing that whole process myself, what I was going to do when the next series starts airing next year, if they announce a sixth series is coming and they want people to apply, I was going to post up a topic here with all of the details to coordinate several of us to apply, but only on specific areas of Transformers like, Transformers Movies, Transformers toys, Transformers Original Series, Japanese Transformers, Transformers Beast Wars.
Hopefully that improves our chances of getting someone on the show with the topic of Transformers.