LARRY BIRKHEAD is in talks to star in a reality TV show documenting his life as the father of late Anna Nicole Smith's daughter DANNIELYNN. The professional photographer has an agreement in principle with one U.S. network - after being inundated with offers since he won custody of the one-year-old earlier this year (07). Birkhead tells the New York Daily News, ''I don't want to give something away yet. It's basically the 'day in the life of daddy duties.' ''The truth is, people came to me with pitches, and I haven't accepted anything. It's something they continue to talk to me about. It's multiple networks. I'm listening to what they have to say. "My daughter is my focus now. I'm being a great dad. She's teething. She's got about eight teeth. Everything is great with her. She chomps on me every day. All she has to worry about is her Barney video."