Today, TV Week unveils a new look even as our mission remains the same: to guide you to what's new and noteworthy on all of television's many channels. These changes should make it easier than ever to plan your weekly viewing.

Many of your favorite features continue, including:

* The TV grids that guide you to what's on when, 24 hours a day, seven days a week.

* The cable chart that tells you where you can find your favorite channels, along with listings tailored to what's on in your area.

* Favorites such as sports highlights, the crossword puzzle andpicks of the week.

So what's new?

* Different type styles are used throughout the book. They were designed to be easier to read and more closely match the popular typefaces used for years in our programming grids.

* Broadcast and cable highlights are combined into one list, as are broadcast and cable movies. Four-star movies will be marked with a special icon.

* DVD reviews, which The Post includes in its Friday Weekend section and in the Sunday Source, will be a less-frequent feature of TV Week.

* Occasionally, we'll run condensed movie listings for Cinemax and the Movie Channel. We will continue to list as many movies as we do now for HBO and Showtime.

We know the new TV Week may take a little time to get used to. We welcome your comments -- please send them to the addresses below.