It's one more way people will be able to find their favorite TV shows without having to fire up their TVs.

ABC says it will offer four of its primetime shows on its web site.

The shows can be watched on the site for free for two months after their original air date.

The offer includes the hits "Desperate Housewives," "Lost,” "Alias,” and "Commander In Chief."

But there is a catch! The shows will include advertisements that cannot be skipped over during viewing.

The offer starts next month on ABC.com.