A few times, I have posted links to chips of the show Adam Ruins Everything, which is a both an educational and comedic show that busts modern falsehoods. In many ways, it is similar to Mythbusters and Penn and Teller: Bullshit! in doing so. Here is a clip from a recent episode, in which it addressed claims of providing incorrect information to viewers:
I agree - admitting to errors and learning from them increases someone's credibility. Claiming that you're 100% is far more likely to lead people to believe that you're often wrong.