From the "This is how rumors get started" department

Updated 12/10

I thought this one was worth passing along. It's a highly unsubstantiated rumor, so take it for what it's worth.

The rumor comes via R.S. Janes at BartBlog (a.k.a. Bartcop). It claims that MSNBC may have found that host they've been looking for. And it ain't Rosie O'Donnell. This rumor claims that MSNBC regular and Air America Radio host Rachel Maddow may get the nod. Here's more:

Finally, a note under the door says Air America Radio’s Rachel Maddow will be offered the hour following Keith Olbermann on MSNBC, but only with a ‘funny’ co-host, as it appears increasingly unlikely that The Daily Show’s Jon Stewart or Bill Maher and others will step in for the kind of unimpressive money and short-term contract that are on the table. Rumor is the cable channel’s execs are impressed with Maddow, but she’s not perceived as ‘funny’ enough by herself for the uptempo news/comedy format they’re seeking. Paul F. Tompkins and Joel McHale, that guy Keith has on who hosts E!s “The Soup,” have been mentioned as co-hosts, as well as Rachel’s AAR colleague Randi Rhodes, although Randi is seen by some as too partisan and combative. If this goes through, the prime-time weekday line up for MSNBC would then be “Hardball”; “Countdown with Keith Olbermann”; the as-yet-unnamed Rachel Maddow show, and “Live with Dan Abrams.” Expect a press release in January.

Again, this is just a rumor, and one that hasn't hit the big media gossip sites yet, so do with it what you wish.

UPDATE: TVNewser says a test pilot for a potential new show has been taped, featuring Maddow and MSNBC prime time VP Bill Wolff.