MSNBC host Keith Olbermann was a guest on CNN's Reliable Sources this morning. Howard Kurtz and Olbermann discussed topics ranging from Olbermann's feud with FNC's Bill O'Reilly to his ability to balance news and opinion in his MSNBC roles.

Kurtz asked Olbermann about his constant focus on O'Reilly. "Are you obsessed with the guy?" he asked.

"I promise every week that I do my stuff I'm going to, you know, sort of back off," Olbermann said. "And then he does something so outrageous, so offensive, that I feel obligated to do something about it."

Kurtz also asked about his varied roles at MSNBC. "You've been co-anchoring MSNBC's news coverage on primary night. Is there a collision of roles between being a neutral anchor and the very opinionated guy we see on "Countdown?" he asked.

"I don't think there's that much of a collision," said Olbermann. "I think if you're smart enough to know when to do one and do the other, there shouldn't be a problem."

> Update: Click continued to see the Youtube video of the segment...