What to Watch Wednesday: The SYTYCD Top 20, Dallas Blackmail, Grisly Final Witness and More

On TV this Wednesday: It’s time to start picking your favorites from So You Think You Can Dance’s Top 20, Melissa & Joey go Greek, The Real World invades the U.S. Virgin Islands and the Final Witness premiere will make you double check all the locks before you go to bed. Here are 10 programs to keep on your radar.

8 pm So You Think You Can Dance (Fox) | In the series’ 200th episode, this year’s Top 20 dancers are revealed and perform their specialties. Fun fact: If you put together all of the pirouettes performed by contestants and hopefuls in all of those episodes… you’d be really dizzy.

8 pm Melissa & Joey (ABC Family) | Mel and Joe arrange blind dates for each other. Lucky Joey: His honey turns out to be Greek’s Dilshad Vadsaria.

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9 pm Dallas (TNT) | John Ross plans to blackmail a family member, but J.R. decides to take care of the situation in his own way. (I’m going out on a limb here and thinking that “his own way” doesn’t mean turning the other cheek and moving on in peace.)

9 pm America’s Got Talent (NBC) | The anything-goes competition continues in Las Vegas, where the Top 48 acts are unveiled.

9 pm Cajun Pawn Stars (History) | A shop regular shows up to sell a 1950s popcorn machine, whose kernels are probably fresher than what your local movie theater cooks up.

9 pm Royal Pains (USA Network) | Eddie’s got a new outlook on life, and gosh darn it, he’s going to use it to reunite his sons. Also, Hank treats a couple planning a unique fundraiser.

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10 pm Final Witness (ABC) | Series premiere: This true-crime hour goes for an In Cold Blood feel as it weaves real-life interviews and scripted scenes to recreate a murder from the victim’s point of view.

10 pm Necessary Roughness (USA Network) | Dani treats a baseball slugger who suddenly can’t hit. Funny, I didn’t know Albert Pujols was a guest star. Oh, my bad — the role is being played by CSI: Miami‘s Adam Rodriguez.

10 pm The Real World: St. Thomas (MTV) | The “reality” series kicks off its 27th (!) season of debauchery, hook-ups, fighting and crying, in the gorgeous U.S. Virgin Islands. (And that’s probably the only thing “virgin”-al about this show. Zing!)

10 pm Futurama (Comedy Central) | Leela manages a campaign for a presidential candidate whose birth certificate is mysteriously missing. Where do the writers come up with these ideas?

Which of the above is must-see for you? Also, hit Comments to offer your own tune-in suggestions.