“Celtic Thunder Mythology,” 7 p.m. to 9 p.m., PBS
The Irish singing group performs at the Helix Theater in Dublin.
“The Descendants,” 8 p.m. to 10 p.m., HBO (2011)
Omaha native Alexander Payne's Oscar-winning drama about a middle-age man (George Clooney) who tries to reconnect with his two daughters after his wife is seriously injured in a boating accident.
“Hoarding: Buried Alive,” 8 p.m., TLC (new)
A woman must live in a camper in her backyard because her house is so cluttered with things she's found in Dumpsters. Her neighbors are threatening to sue if she doesn't clean it up in a hurry.
“Boston's Finest,” 8 p.m., TNT (new)
A capture becomes personal for the gang unit, and patrol officers encounter an assortment of characters and challenges.
“Feed the Beast,” 8 and 8:30 p.m., Travel Channel (Both new, series premiere)
Cities are explored in search of the best all-night food spots. Featured in the opening episodes are a San Francisco taqueria known for its two-pound burrito and artisan sausage from a place called Frank in Austin.
“Suburgatory,” 8:31 p.m., ABC (new)
Dalia helps Mr. Wolfe get over his breakup with Chef Alan by changing his appearance and, for good measure, plotting a little revenge to mend his broken heart.
“The Americans,” 9 p.m., FX (new)
Stan's mole is at risk of discovery as the KGB scours its ranks for a double agent.
“My Strange Addiction” 9 p.m., TLC (new)
A 33-year-old woman has a 20-year addiction to Vapor Rub, amounting to 30 jars, inhalers and patches per week.
“Conspiracy Theory,” 9:10 p.m. to 11:30 p.m., Encore (1997)
Mel Gibson and Julia Roberts star in this action mystery about a man obsessed with conspiracy theories who becomes a target after one of his theories turns out to be true.
“Duck Dynasty,” 9:30 p.m., A&E (new)
A pet lizard escapes in the warehouse, and Willie and Si tag along with police officers for the day.
— Laura King