ABC has found a way to squeeze a little more life out of frosh blockbusters “Lost” and “Desperate Housewives”– and possibly expand their already sizeable fan base to boot.

ABC has greenlit separate one-hour specials tied to both series, with the network’s marketing and current programming departments overseeing production of both. But rather than serving up simple clipfests catering to current viewers, ABC is designing the specials to serve as introductory guides to the serialized shows.

“There can be a reluctance on the part of the audience to invest in these kinds of shows,” said ABC current department toppertopper Lance Taylor. “What we’re trying to do is keep those tent doors open and invite as many people in as possible to enjoy the last part of the season.”

Added ABC marketing chief Mike Benson, “We want to do everything we can to make sure these series finish the season in the biggest way possible.”

The “DH,” special will “look very much like an episode” of the show, Taylor said.

“Mary Alice (the show’s narrator) will be our guide, and she’ll take us through the show,” he added. Focus will be on the four main housewives.

The “DH” hour — from Lynne Lussier Prods.– will air in the hour preceding the show’s season finale. ABC has not yet announced scheduling for the finale.

Benson said ABC is already talking with its sister companies about other uses for these specials, such as including them on DVD releases of the shows.