During the week in which Jeopardy! was hosting the IBM challenge, they brought in an avatar of Watson to do announcing duties, and Watson immediately started sucking up to Conan. When Andy called him on it, Watson started talking about how his wife prefers him (Watson) in bed— and Andy pulled a baseball bat out from behind his podium and started beating the shit out of Watson. Sparks were flying and everything, while the crowd chanted "ANDY! ANDY!"
Watson returned the following day, and this time Andy blasted him with a shotgun.
Watson also returned on the third day. Andy then grabbed him, ran to the roof and threw it on to the empty parking lot below. And then it blew up.
Conan: Why did they pack a computer screen with explosives?
Steven Ho's segments. So far on TBS he's cut a watermelon resting on Conan's chest with a katana, attacked Conan with the same katana while blindfolded (teaching Conan to dodge), broken staves on Conan, and had Conan break boards and concrete blocks.