can't think of any right off hand

I guess you also have Paul Rack, Eric Cantor and now Rick Rubio and Ted Cruz to push the new meme that Republicans are not just old white men, but are there any go-to Democrats who get similar media coverage and appearances?

It's as simple as that.

But then, I never watch Sunday morning TV.. just get reports here.
On Sunday mornings I usually listen to what I may have missed Saturday of Click and Clack.

Chuck Schumer, Cory Booker. Biden and Lieberman used to be on as much as McCain and Graham, and Claire McCaskill used to be on a lot as well.

seems to get airtime on a regular basis.

Pandered to the Liberal Base for Media Attention.

kid gloves like McCain. No one in politics is more adored in the Corporate Media than John McCain. There is no equivalent. Even Game Change treated him with kid gloves. McCain is known for his temper. He is known for being a hothead. And the only time he defended Obama was with the "Arab Lady," but he seemed unwilling to put a top to Palin's race baiting and hate rhetoric. He also played right into the Bill Ayers rhetoric. His hatred and resentment of the president continues to this day.

He is the only one remotely like McCain and he isn't all that close.

Republicans have dominated the Sunday talk shows, an extensive survey done by the Center for American Progress showed a few years back.

Not only are Republicans far more common a guest on Sunday mornings, they're far more likely to appear unopposed (i.e., solo). This has been true no matter who has controlled Congress or the presidency.

Not sure.

called "Meet the Press". They occasionally do guest star spots on similar shows.
I'm still waiting for the musical version.

The Dems don't have anybody that can compare to these two. Face it.