Four years

MSNBC will mark the fourth anniversary of the beginning of the Iraq war today with all-day coverage of the past four years, including interviews, analyses and video footage. Anchors throughout the day will include NBC's Tim Russert, David Gregory, Andrea Mitchell and Chip Reid, and MSNBC's Chris Matthews, Keith Olbermann, Joe Scarborough, Tucker Carlson and Norah O'Donnell. MSNBC's prime-time programming including Tucker, Hardball with Chris Matthews, Countdown with Keith Olbermann and Scarborough Country also will focus on the Iraq war anniversary.

Greener 'days'

Influenced by the global-warming documentary An Inconvenient Truth, NBC's Days of Our Lives is going green this month. The daytime serial will feature a wedding with "earth-friendly elements" in a story line that will end in May. The fictional nuptials will include pesticide-free flowers and biodegradable favors. Executive Producer Ken Corday said it's important for the soap opera to "fall in step in helping to raise the viewers' consciousness of certain environmental problems and solutions."

Chatter

"Woody's my guy. Annie Hall is the Old Testament; Manhattan is the New Testament."

Chris Rock, comic-actor and writer-director of the film I Think I Love My Wife, paying homage to Woody Allen

More invention

ABC's American Inventor is embarking on its second- season search. The prize for the "ultimate in homespun ingenuity" is $1 million and the chance to market the winning product. Tryouts began Sunday in Los Angeles and will continue in March and April in San Francisco, Chicago, New York, Orlando, Fla., and Houston. Individuals and teams may enter a sketch, a prototype or simply a concept.