Engineers discovered the problem during fueling, and worried that any excess hydrogen on the launch pad could cause an explosion during engine ignition.
VOA: standard.2009.03.15
He then got on the Internet, discovered this was a common problem with that TV model, found videos on YouTube, and a few weeks later, for a lot less money, he fixed his TV on his own.
Studies at the Gale Crater landing site have been on hold since the beginning of March after engineers discovered a problem with Curiosity's computer memory, possibly caused by space radiation.