What to Watch Tuesday: Dixie Dude Hits Whose Line, Bengals' Hard Knocks, Suits Conflict & More

Whose Line Is It Anyway?On TV this Tuesday: Wilson Bethel asks Whose Line Is It Anyway?, the Cincinnati Bengals prep for another season of Hard Knocks, “A” puts the “surprise” in a Pretty Little party and Suits find themselves at cross purposes. As a supplement to TVLine’s original features, here are 10 programs to keep on your radar.

8 pm So You Think You Can Dance (Fox) | Choreographer Kenny Ortega (Dirty Dancing) guest-judges, which means the Top 12 better get to the lake and practice those lifts!

8 pm The Diplomat (ESPN) | This documentary, part of the network’s Nine for IX series, chronicles how East German figure skater Katarina Witt’s rise to Olympic glory came with a price: constant surveillance by her native country’s secret police force.

8 pm Pretty Little Liars (ABC Family) | Paige plans a surprise party for Emily, but “A” is responsible for the biggest shocker of all. Kamar de los Reyes (One Life to Live) guest-stars.

8 pm Whose Line Is It Anyway? (The CW) | Hart of Dixie‘s Wilson Bethel – aka the man improv guru Wayne Brady deemed “the most game and most skilled improviser of the celeb guests that we’ve had” — makes his debut on the comedy fest this evening.

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9 pm Face Off: The Vets Strike Back (Syfy) | Two-hour special: In advance of next week’s Season 5 premiere, get reacquainted with the eight former contestants who’ll return to battle eight newcomers for special effects-makeup dominance.

9 pm Twisted (ABC Family) | As a development in the murder investigation threatens to send Danny away for good, Lacey’s dad arrives in town with a huge secret.

9 pm Rizzoli & Isles (TNT) | Jane is puzzled by Lt. Martinez’s favoritism toward his own drug unit during a hit-and-run investigation.

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10 pm Hard Knocks: Training Camp With the Cincinnati Bengals (HBO) | Season 8 premiere: Head coach Marvin Lewis and his team kick off training camp with a week of on-field drills.

10 pm Perception (TNT) | A deathbed confession about a 1992 murder becomes more complicated when the alleged killer’s brain tumor mysteriously disappears. Reid Scott (Veep) guest-stars.

10 pm Suits (USA Network) | Harvey’s defense of Ava runs into trouble when the interests of her murder trial are at odds with Louis’ work to thwart a hostile takeover of Hessington Oil.

Hit the comments with your must-see picks from tonight’s lineup!