The Waltons 8 p.m., Hallmark Channel
Ralph Waite was the father that every Depression-era family needed. As patriarch John Walton on “The Waltons,” he was even-tempered and fair with the kind of reassuring grin that could make a family forget that they were running around in the Virginia dirt barefoot and decked out in hand-me-down overalls. Waite, who died last week at 85, continued acting on shows such as “NCIS” and “Bones.” But after nine seasons on Walton’s Mountain, it’s difficult to think of him as anyone but the dad who always offered Mary Ellen a shoulder to cry on or gave John-Boy’s hair a reassuring ruffle.
Frontline: Generation Like 10 p.m., Channel 2
Initially it appears that author Douglas Rushkoff’s “Frontline” report will offer a slightly outdated guidebook for parents on social media. The first scene shows him talking to parents who are trying to understand Instagram. One of them mispronounces Twitter. Instead, he swiftly delves into the culture of teens desperately seeking affirmation and forming their identity through Facebook likes, Twitter followers, and YouTube views. In case you didn’t know, corporations are preying on that need for attention. Or, are the teens taking advantage of companies by boosting their personal brand, all the while getting paid to eat Taco Bell in a YouTube clip?
Olympics 2014 8 p.m., NBC
Yup, this is still happening.
My 600-lb Life 9 p.m., TLC
Welcome to the big time.
Cougar Town 10 p.m., TBS
Can I get you a refill on that wine?