Melissa Harris-Perry's guest pool remained extremely diverse while diversity on Up with Steve Kornacki dropped in 2014, according to a Media Matters review.

Because the MSNBC programs feature significantly different formats than the Sunday morning political talk shows on the four major broadcast networks and CNN (they are two-hour programs that air on both weekend days and are less focused on the news of the week), we did not review the ideology of their guests nor, for the sake of consistency, include them in our initial capsule report. But as the data from their Sunday editions contained in our full report shows, both programs demonstrate that it is possible to produce a show featuring more women and people of color than seen elsewhere.

For the second year in a row, Melissa Harris-Perry was the most diverse program of the seven we reviewed for gender and ethnicity. 55 percent of the program's Sunday guests were people of color and 45 percent were women. Only a quarter of guests were white men. All three measures were virtually unchanged from 2013, showing a clear commitment to a diverse guest pool.

Up's guest pool remained the second most diverse of the seven programs in 2014, but the program slipped from 2013, booking a larger percentage of white men and fewer women and people of color.

Here's the data for gender in 2014 and 2013:

For ethnicity:

*This chart has been updated for accuracy

And for gender and ethnicity combined: