Supersize me

"Game of Thrones" producers had every opportunity to kill Jon Snow (again) in last week's action-packed episode. The fact that they didn't means he's probably safe in this weekend's season finale and beyond. But since the series' greatest asset is its unpredictable nature, you never really know. Last week's trailer suggests Peter Dinklage will be front and center in 2016's last episode, which with a 69-minute running time will be the longest installment in the show's six-year history.

8 p.m. Sunday, HBO

Sister, sister

"When the Lights Go Out," Jamie Lynn Spears' latest attempt to step outside the shadows of Britney, follows the would-be superstar as she balances the challenges of being a young mother and pursuing a country music career. Of course, the special can't completely sidestep family ties with big sister making a "surprise" appearance before a performance at the Grand Ole Opry.

9 p.m. Sunday, TLC

All wet

Minnesota residents who think they've found semi-secluded relief by cooling down beneath the red granite cliffs in Quarry Park are about to have their cover blown. "Top Secret Swimming Holes," which looks at the top 10 hideaways in the U.S., takes a dip in the area's two pools in the series' newest episode.

9 p.m. Sunday, Travel Channel

Neal Justin