This is how liberal your Sunday talk shows are:
Single-source interviews are the showcase segments on the Sunday shows, which tend to compete for access to guests they consider the top newsmakers—which, in the world of Beltway media, usually means politicians. In the eight-month study period, partisan-affiliated one-on-one interviews were 70 percent Republican—166 guests to Democrats’ 70.
Then you got this part:
Unlike the one-on-one interviews, these roundtable segments include some voices from outside the two parties; partisan sources—who leaned Republican, 180 to 109—accounted for less than half of the guests. But the nonpartisan guests didn’t alter the right’s advantage, with Republicans and/or conservatives making 282 appearances to 164 by Democrats and progressives (categories that are less interchangeable). Middle-of-the-road Beltway journalists made 201 appearances in roundtables, which serves to buttress the argument that corporate media’s idea of a debate is conservative ideologues matched by centrist-oriented journalists.
So the round table is a little better, with only a 63% domination from Republicans. Still, I don't see how you can consider this the "liberal" media.