I remember GTV trialled having their weekend bulletins read by someone standing up in 2008-09, rather than sitting down, though I can’t remember why it was introduced.
This appeared to cease once GTV got a new set in August 2009 (when they got a set exactly the same as what Sydney got, and what Brisbane would get a month or two later). However, I do remember the standing up format continuing intermittently only for major news headlines (or sometimes the first story of the bulletin) after that.