Stephen Colbert’s first night hosting the Late Show was met with some mixed reactions (hey, growing pains, y’all). But, as it turns out, his premiere—which still managed to snag 6.6 million viewers—almost didn’t make it to viewers’ eyeballs at all. After the episode finished filming, producers had a hard time actually getting it to CBS to put on the air. “The computers kept crashing,” Colbert said on yesterday’s Late Show. “At 11:20 [p.m.] no one in the building could give me any certainty that the show was going to go on the air last night.” Eventually Colbert’s tech wizards fixed the issue, but even the host doesn’t know exactly what went wrong. “I’m still not sure what the problem was,” Colbert joked, “but if you’re seeing this on the air right now, that means we fixed it!”