MSNBC's Chris Hayes knows how his show differs from Bill O'Reilly's. It's the diversity factor versus the O'Reilly factor.

Nightly cable news is a sea of white male pundits, but Hayes' Up program has broken the mold to become the only Sunday show in its timeslot to have a majority of guests who are not white men, or even men.

Speaking to the Columbia Journalism Review days before his new primetime show ‘All In’ debuts, Hayes said there's no secret as to why he's able to interview such a diverse roster of guests. His show runners simply think about diversity and acts accordingly:

'We just would look at the board and say, 'We already have too many white men. We can't have more.' Really, that was it,' Hayes told the Huffington Post. 'Always, constantly just counting. Monitoring the diversity of the guests along gender lines, and along race and ethnicity lines.'

Out of four panelists on every show producers have ensured that at least two were women, Hayes says. 'A general rule is if there are four people sitting at table, only two of them can be white men. Often it would be less than that.'

Another factor that contributes to the show’s broader outlook is that by talking about issues beyond the usual ones that people like Senator John McCain are interested in, you can welcome more diverse guests.

Hayes said he didn't think the two contrasting shows were reaching for the same audience, and he insisted he has barely seen the Fox News pundit's program.

'I have watched his show very, very, very little,' Hayes said. 'I'm positive I have never watched an hour of the O'Reilly show."'