Ten did move its morning news to 12:00pm in 2004, titled “Ten News @ Noon”, but IIRC it rated very poorly and it wasn’t long (maybe by 2005?) that they moved their morning news back to 11:30am.
I also think that they extended it to an hour (to begin at 11:00am) towards the end of the noughties, and on Mondays and Fridays they would have Mark Aiston (from Adelaide) and Rob Canning present the sport respectively.