“DALLAS” SEASON FINALE – We were quite skeptical when we learned of plans to revive the popular 1980s soap. But the cable reboot won us over by blending some original flavor – J.R. (Larry Hagman), Bobby (Patrick Duffy) and Sue Ellen (Linda Gray) – with a bunch of pretty young newbies who have some actual acting chops. Alas, the guilty pleasure ends way too soon with an episode that brings a health crisis and the exposure of long-buried secrets. Take heart, though. “Dallas” already has been renewed for a second season. 9 p.m. Wednesday, TNT.
SUNDAY: The Summer Olympics moves into its second week in London, where all eyes will be on Jamaican speedster Usain Bolt as he pursues another gold medal in the marquee 100m race. Also: gymnastics, diving and beach volleyball. 7 p.m., NBC.
SUNDAY: On “The Newsroom,” the staff cuts short an anniversary party to rush back to work when Charlie (Sam Waterson) gets an anonymous tip about an important development that will be the subject of a televised speech by the president. 10 p.m., HBO.
MONDAY: A new episode of “Diners, Drive-Ins and Dives” has Guy jetting off to Hawaii to sample local dishes. 10 p.m., Food Network.
TUESDAY: The “Hard Knocks” documentary series is back to take viewers behind the scenes of an NFL training camp. This season, the cameras follow the Miami Dolphins and new head coach Joe Philbin. 10 p.m., HBO.
WEDNESDAY: Matthew Perry (“Friends”) takes another crack at sitcom success in “Go On,” about a caustic sports talk radio host who enters group therapy after the death of his wife. The show gets a special late-night sneak peek after Olympics coverage. 11:04 p.m., NBC.
THURSDAY: “Wipeout” delivers a hillbilly-themed episode that features a county fair and contestants known as the Critter Snatcher and the Bug Muncher. To celebrate, we’re breaking out the moonshine. 9 p.m., ABC.
FRIDAY: On the season finale of “Common Law,” Wes and Travis (Warren Kole, Michael Ealy) are determined to get back on the good side of Dr. Ryan (Sonya Walger), so they finally share the story about what landed them in therapy. 10 p.m., USA.
SATURDAY: “The Boogeyman” sounds like a cheese-tastic way to spend a Saturday night. It stars Eddie McClintock (“Warehouse 13”) as a frantic sheriff out to subdue a supernatural creature that has gone on a rampage. Emmy voters, take note. 9 p.m., Syfy.