Favorites will be displayed under the "Horse Racing" tab, and then on any of the tabs under horse racing, you'll see a section labeled "My Favorites", from here you'll be able to see your favorite selected tracks!
You can add favorites by clicking the "grey" star on the left hand side of the track name. You can remove favorites by clicking the "yellow/gold" star in the same place.
If you have any questions or concerns regarding favorites, please email us at Support@TVG.com, or click the "Message Us" button from the support center.