A Harry Potter Wiki, a box office challenge, breaking news, and more

By EW Staff
Updated July 20, 2007 at 04:00 AM EDT

1. Great Debates: Summer TV Edition
Log on for TV Watch coverage of your favorite shows: So You Think You Can Dance, Top Chef, Entourage, Big Love, Hell’s Kitchen, Big Brother, and more. Discuss and debate with the Web’s most rabid TV fans.

2. Exclusive Video Sneak Peeks
EW.com’s videos take you beyond the velvet ropes at parties and premieres and behind the scenes on movie and TV sets. And beginning July 23, you can get a sneak peek at the Discovery Channel’s 20th-anniversary edition of Shark Week.

3. More Daily Entertainment News
You’ll find exclusive breaking news and at-a-glance summaries of all the day’s top headlines. Log on for daily reports from this week’s Television Critics Association tour and next week’s Comic-Con event.

4. Hogwarts Heaven!
If the fifth movie and final book in the Harry Potter saga have left you jonesing for even more, you’re in luck: With our new wiki, you can design your own Hogwarts yearbook page, create your own spells, vote for your favorite books and movies, and much more.

5. Box Office Game
So you think you’re pretty good at guessing the weekend grosses? Test yourself against EW’s box office expert Joshua Rich. Predict the order of this weekend’s top 10, then check back on Monday night to see how you stack up.