National Memorial Day Concert (8pm, UNC-TV) - Joe Mantegna and Gary Sinise host this annual tribute to America's military heroes. Slated performers include Alfie Boe, Candice Glover ("American Idol"), Chris Mann ("The Voice") and Katherine Jenkins.
Arrested Development (Netflix) - In its original three-season run on Fox, "Arrested Development" had low ratings but a devoted, cult-like following. And it's no wonder. It was brilliant, weird and hilarious. Its low ratings are one of life's great mysteries. But starting today, fans can put all that pain aside to watch 15 brand new episodes of the series -- all landing on Netflix at once, and with all the original cast members returning: Jason Bateman, Michael Cera, Will Arnett, Portia de Rossi, Jeffrey Tambor, Jessica Walter and Tony Hale. A Netflix streaming account is the only way to watch.
Smash (9pm, NBC) - In the series finale, Tom crosses a Tony voter and Ivy deals with troubling news. Then, the Tony Awards finally take place and everyone eagerly awaits the results.
Behind the Candelabra (9pm, HBO) - An adaptation of Scott Thorson's book about his five-year love affair with renowned pianist Liberace, who was four decades older than the teenage Thorson when they met in the late 1970s. Liberace, played here by Michael Douglas, lavished Thorson (Matt Damon) with gifts and attention before a bitter breakup in 1982. If you have HBO, you can't miss this. Just ask Adrienne.
Mad Men (10pm, AMC) - This week's episode will likely be far less triply than the previous one. Tonight, Roger is plagued by a recurring dream and Joan goes to the beach. Are you listening, fellas? JOAN GOES TO THE BEACH.
Mermaids: The New Evidence (10pm, Animal Planet) - Animal Planet's follow-up to their massively popular faux-documentary "Mermaids: The Body Found" (which incidentally airs at 8 with some additional content) with an installment claiming to present "new evidence" about the great global mermaid coverup. It's entertaining and kind of fascinating to watch because of the CGI work, but just remember: MERMAIDS ARE NOT REAL. THIS IS A GAG.
The Borgias (10pm, Showtime) - Cesare burns Constanzo's palace in order to contain the plague. Meanwhile, Lucrezia seeks a Neapolitan power base for herself and her family, and she blackmails Price Raphael.