Weekend watchdog

Time of the youth of the world to gather again - this time in South America. Rio welcomes the world with the 2016 Summer Olympics, starting Friday at 7:30 p.m. with the opening ceremony on NBC.
There's action on NBC throughout the day Saturday and Sunday, along with other members of the NBC family of networks and its web platform.
The United States men's basketball team plays China Saturday at 6 p.m. on NBC Sports network.
The Orioles visit the White Sox for the weekend on MASN2. The Nationals host the Giants on MASN for the weekend.
FoxSports1 has the Red Sox-Dodgers Saturday at 4:05 p.m.
NASCAR visits the Glen Sunday at 2 p.m. on USA, with the Xfinity Series on CNBC Saturday at 2 p.m.
The NFL preseason begins Sunday at 8 p.m. with the Packers meeting the Colts on ESPN in Canton, Ohio. The Hall of Fame induction ceremonies will be Saturday at 7 p.m. on ESPN and NFL network.
Tampa Bay takes on Philadelphia in the Arena League Sunday at 6 p.m. on ESPN2.
Grab your umbrellas for the Travelers Championships on CBS Saturday and Sunday at 3 p.m.
The United States women's amateur golf championship will be Sunday at 1 p.m. on FoxSports1. The semifinals are Saturday at 1 p.m. after the quarterfinals at 10 a.m., with play Friday starting at 8:30 a.m.
Liverpool battles Barcelona in the International Champions Cup Saturday at noon on ESPN.
Portland plays Sporting Kansas City Sunday at 4 p.m. on ESPN. FoxSports1 has Seattle facing Orlando Sunday at 7 p.m., followed by the Red Bulls against the Galaxy.
Little League baseball's Senior League has its championship Saturday at noon on ESPN. The Intermediate League title game is Sunday at 8:30 p.m.
The Junior League Softball World Series finale will be Saturday at 4 p.m. on ESPN2, with the Senior League final match Sunday at noon on ESPN and the Big League softball crown will be earned Sunday at 3 p.m. on ESPN2.
ESPN2 has the Atlanta Open semifinals Saturday at 7 p.m. and final Sunday at 1 p.m.