<P> During the second half of the 2009 season, Byron was on maternity leave and was temporarily replaced by Jessi Combs . From 2010--2011, Byron had her own show, Head Rush, on the Science Channel, geared toward science education and teens . </P> <P> Byron has also hosted the 2010 and 2011 editions of Large, Dangerous Rocket Ships for the Science Channel . She and Belleci made a guest appearance on the October 3, 2012 episode of the Discovery series Sons of Guns . They test - fired some of the weapons in the Red Jacket shop and watched as the staff re-tested a myth previously busted by the Build Team: that a propane tank could explode if struck by a bullet . On August 21, 2014, it was announced that Byron, along with co-stars Grant Imahara and Tory Belleci, would be leaving MythBusters . </P> <P> Byron and Belleci hosted coverage of Pumpkin Chunkin on the Science Channel from 2011 to 2014 . </P> <P> In 2015, Byron and Tory Belleci hosted Thrill Factor, a new show for the Travel Channel . In this show they visit and showcase thrill rides around the world and explore a little bit of science such as the effect of G forces on breathing, heart rate and other factors . </P>

What happened to the b team in mythbusters