Pretty much. I don’t know if Seven is still producing It’s Academic and burying it on 7TWO, but the production values (same graphics, set, theme music, etc.) hadn’t changed a bit from the time it started until at least 2013-14.
Those weren’t game shows either.
But just on The Shak, didn’t that show have a ridiculous change in format towards the end? 
That’s correct. Featured the science-y guy from “The Shak” who’s non-character name escapes me right now.
Yeah, I think it aired at 4pm in 2007 with some repeats at like 10am or something on a Saturday morning. Presented by Miranda Deakin…who I think might’ve also been on Hot Source (afternoon kids magazine show on Nine during the mid-2000s that was the predecessor to The Shak in its original format).
A pity that the “Sharky” character wasn’t kept around for something else though. Could’ve easily become a Nine Network, 21st century equivalent to Agro on a Saturday morning kids wraparound under the right producers!