Television hasn't hit its summer doldrums yet. Between a mysterious dome, a high-wire act and climaxes to the NBA season and "The Voice" singing competition, viewers are finding reasons to tune in.

More than 13 million people watched the opening of CBS' tale "The Dome," a collaboration between Stephen King and Steven Spielberg on Monday night. That's according to preliminary research by the Nielsen company. CBS would be happy with those numbers in the regular TV season _ in summertime, that makes them ecstatic.

Miami's seven-game victory over San Antonio made it the second most-watched NBA Finals since 2004.

Discovery also got big numbers for Nik Wallenda's tightrope walk across the Grand Canyon, and "The Voice" had a good season finale for NBC.