Cenk Uygur of the Young Turks is guest-hosting for Dylan Ratigan today on his MSNBC show.

Uygur topped the TVNewser poll in early 2009 when the network was said to be searching for a new 10pm host. He’s appeared as a guest on a number of shows in the last year, but this is his first time hosting.

Last month, MSNBC finally filled that 10pmET slot, giving the hour to longtime MSNBC contributor Lawrence O’Donnell.