You were simply saying it premiered in Nicktoons before Nickelodeon. And I corrected you saying it didn't. The first sneak peek aired after Rufus 2 premiere on January. The second sneak peek on Mon Feb 20 as I was saying did simulcast Nicktoons and TeenNick, after SpongeBob's 30 min special of "Goodbye Krabby Patty". The official series premiere only aired on Nickelodeon on Tues Feb 21 at 5:30pm. I somehow doubt Bunsen might get renewed because when I watched Nickelodeon's fall 2017 promo, Bunsen is not mentioned, which is uncertain whether or not Bunsen will be Nicktoons exclusive. I don't think Bunsen should be renewed for another season, after ratings decline, and as of now for few months since last premiere on Nickelodeon, there hasn't been reruns on main network Bunsen just joined weekday lineup since earlier this month on Nicktoons, but before that it was airing once per weekend for reruns on Nicktoons.