Billy Crystal has been looking over Broadway theaters for his new one-man play, 700 Sundays . . . Billy Crystal . . . A Life in Progress.

"I've been working on it since 1948," the 57-year-old comic says. "It's unlike anything I've ever done."

The title refers to the number of Sundays he spent with his father, who died when he was 15. Crystal tells of childhood in Long Beach, N.Y., about his uncle who ran a jazz label, how Billie Holiday took him to his first movie and how Louis Armstrong came to a family seder.

"I do about 40 different characters," says Crystal. "It's four pages of script and two hours of performance."

The show is due to open in New York in November.