Look for some cross-network show hosting tonight on CNN. Glenn Beck will be filling in for Larry King tonight on CNN at 9pmET while hosting his Headline News show at the same time. The HLN show is taped earlier in the evening with the first airing at 7pmET.

Beck tells TVNewser, "Some days it's easy to take for granted just how fortunate I am to work in this business. Today is not one of those days. It is humbling to be asked to fill in for a living legend like Larry King, and I thank him for the trust he's put in me by giving me such an extraordinary opportunity."

> Update: Insiders tell us while Beck will speak for the right side of the political spectrum tonight, Joy Behar will be filling in for King tomorrow night and will speak for the left.