In a season full of misfires, at last a hit.

"700 Sundays," (search) Billy Crystal's (search) one-man show about growing up on Long Island (search) in the 1950s, sold over $500,000 worth of tickets Monday, the day it opened to generally positive reviews.

Tuesday's take was a robust $300,000, and the show is fast becoming one of the toughest tickets in town, although there are still some seats to be had in January and February, traditionally slow months on Broadway.

"700 Sundays," which opened with an advance sale of more than $8 million, is only scheduled to run through March.

But Crystal's having so much fun — and is so pleased with critical and industry reception — that he'll probably extend through the middle of June.

If he does, he'll be on Broadway during the Tony Awards and would be the clear favorite to host this year's telecast.

Asked at the opening party if he'd be willing to take the job, Crystal replied: "I'm focusing on doing my own show right now."

That's not quite a "no," so you can bet that he'll be asked — begged, actually — by the producers of the Tonys.

Another show that had a good day at the box office on Monday was the upcoming Monty Python musical, "Spamalot."

Tickets went on sale that day for the first time, and there was a line down the block from the Shubert, where the show begins previews in February, to the Majestic.

Production sources say the day's take was more than $500,000.

"Spamalot" is also doing great business in Chicago, where, in just two weeks, it begins its out-of-town tryout.

The advance there is over $4 million, and the five-week run is nearly sold out.

As for the misfires this season, yesterday two bowed to the inevitable: the dreadful "Dracula" and Eve Ensler's "The Good Body" posted Jan. 2 closing notices.

They will be joined by "Bombay Dreams," a $14 million misfire from last season that should have shaka-laka-ed out of here a long time ago.