Smallville Smallville

8/7c CW
It's not a happy reunion for Oliver when his former teacher, The Dark Archer (Steve Bacic), comes to town with revenge on his mind. He sets his sights on Lois and Chloe and even kidnaps Mia (Elise Gatien), but it's clear the Dark Archer didn't count on these ladies having more than one superhero to watch their backs. With Oliver on the verge of crossing the line, it's up to Clark to save the day. — Rhoda Charles


8/7c Fox
While it may seem like Echo won the war against Rossum two weeks back, fans who've seen "Epitaph 1" (the "lost" episode from the Season 1 DVD set) know better. By 2019, due to the personality-imprinting tech, chaos reigns supreme. Tonight's series finale, set a year later, picks up that thread, with Echo and pals battling to restore order to the world and save humanity from extinction. (Or do they? Could the series' final story arc simply be Attic-housed mental machinations? We'll see.) — Jeff Gemmill

9/8c Syfy
If you think the growing pains of becoming a teenager can be rough, imagine enduring them while trapped inside a cumbersome robot's body. While Zoe's avatar tries to cope with being the first Cylon, Lacy dines with the mysterious headmistress Clarice, and young Will Adama spends the day with his bad influence of an uncle. But it's grieving Amanda who steals the show by picking the worst time to have an epiphany. — Michael Chant

What Not to Wear
9/8c TLC
Stacy London and Clinton Kelly are on a mission to make America more stylish — one fashion victim at a time. To celebrate their momentous 250th episode, the fierce and funny hosts are staging a wardrobe intervention on a tour bus in Times Square. Their target: Crizti Walsh, a 40-year-old radio DJ who regularly breaks a cardinal rule of fashion by refusing to dress her age. And to provide inspiration, more than a dozen former cases who've made dramatic transformations have been invited along for the ride. — Karen Andzejewicz

Track and Field
8/7c ESPN2
In an acknowledgment that indoor track may be slipping a bit off the radar of casual sports viewers, organizers of the 103rd Millrose Games have assembled former Super Bowl stars as an intriguing warm-up act at Madison Square Garden. David Tyree, Tim Dwight and 49-year-old Willie Gault are in the blocks for the inaugural Super 60 sprint, a brief diversion from world-class headliners like leggy high jumper Blanka Vlasic, hurdler Terrence Trammell, pole vaulter Jenn Suhr and U.S. distance star Bernard Lagat, who aims for an eighth Wanamaker Mile win that would break his tie with the legendary "chairman of the boards," Eamonn Coghlan. — Roger Leister