Sexual tension, fighting, drama and…improv? MTV’s “The Real World” usually features plenty of the former three, but this season, they’re bringing in founder of iO Charna Halpern to help teach the cast how to entertain, while at the same time teaching them how to work and live together. “There was a portion of time where I thought it wouldn’t be good,” says Halpern. “I kept thinking ‘What if I fail?’ But I think I pulled it off.” Halpern’s first appearance on “The Real World” will air Wednesday, April 30, and she will be seeing herself on the show for the first time with an audience, as the Chicago iO will host a viewing party at 8pm. Halpern says most of the cast really enjoyed the experience and were “good kids,” but that doesn’t mean there wasn’t any drama. “I had to talk to them a few times,” says Halpern. “One guy didn’t show up for a mandatory performance, and I told him that if he wanted to make it, he had to want it crazy-bad like the greats do.”  Halpern continues, “I remember that night the director called me and said, ‘I got to hand it to you, that was amazing.’”