Weekend watchdog

Last year, the NFL Hall of Fame game wasn't played.
This year, only a few people will be able to watch it.
The Saints and Cardinals kick off the 2012 preseason Sunday at 8 p.m. on NFL network since NBC is busy with the Olympics. The Saints have endured a tough offseason, sidelining coach Sean Payton for the year. The Cardinals are trying to return to the playoffs after last year's 8-8 mark.
ESPN covers the Hall of Fame enshrinement ceremony Saturday starting at 7 p.m.
The Olympics hit their middle weekend from London, with coverage on the NBC family of networks. NBC begins coverage Friday at 8 a.m. The U.S. men's basketball team plays early Saturday on NBC Sports network. Track and field starts Friday, and swimming closes its run Sunday.
The Orioles continue their quest for a wild-card spot at Tampa Bay this weekend, taking on the Rays on MASN. The Nationals meet the Marlins for a series on MASN2.
While Fox takes a break from Saturday baseball this week, TBS shows the Angels' contest with the White Sox. ESPN has the Cardinals and Brewers Sunday at 8 p.m.
NASCAR makes its return trip to Pocono Sunday at noon on ESPN. The Nationwide racers head to Iowa, going Saturday at 7:30 p.m. on ESPN2.
The Indy car circuit heads to mid-Ohio Sunday at 1 p.m. on ABC.
CBS offers the World Golf Championship Saturday and Sunday at 2 p.m.
In MLS play, the Galaxy host Seattle Sunday at 9 p.m. on ESPN2. The Red Bulls meet Houston Friday at 8 p.m. on NBC Sports network, and Dallas takes on Portland Sunday at 7 p.m.
The U.S. Open Series visits Washington this weekend, with action Friday at 5 p.m. on ESPN2. The semifinals are Saturday at 3 p.m., with the final Sunday at 4 p.m.