This Is Us Asks the Ultimate "What If" Question: What If Jack Had Lived?

The 2018 This Is Us episode "Super Bowl Sunday" showed fans what happened to beloved father Jack Pearson (Milo Ventimiglia), a tragic tale that forever scarred Americans (and shock our faith in slow cooker safety). Three years later, the show's writers are picking at the scab with an episode that asks the question: What if Jack Pearson had lived? Also tonight: Family dynamics raise tensions on Empire and The Conners, Bow deals with family conflicts in Mixed-ish and Black-ish, and Niall Ferguson shines a spotlight on our fractured online world. Here's what's new and noteworthy on TV this Tuesday:

NEW EPISODE: If last week's peak at an elder Jack Pearson didn't have you bawling, this week's This Is Us almost certainly will, as Randall imagines how key moments in his life might have been different had his father never died. Watch the preview. 9:00 PM ET on NBC

NEW EPISODE: Lucious (Terrence Howard) doesn't think Yana (Kiandra Richardson) is ready for the spotlight on Empire. Meanwhile, Maya (Rhyon Nicole Brown) wants a recording deal. Watch the preview. 9:00 PM ET on Fox

NEW EPISODE: When Darlene (Sara Gilbert) takes a job a warehouse club on The Conners, she is horrified to learn that her daughter Harris (Emma Kenney) will be her boss. 8:00 PM ET on ABC

DOCUSERIES PREMIERE: Historian Niall Ferguson shines a spotlight on the World Wide Web, placing it in social and historical context in Niall Ferguson’s Networld. The three part series explores the ways the internet has changed industry, media, political discourse, and civilization. Watch the preview. 8:00 PM ET on PBS

NEW EPISODE: With his speed flagging, The Flash.(Grant Gustin) searches for alternatives before facing a new enemy. Watch the preview. 8:00 PM ET on The CW

NEW EPISODE: In spite of her parents' disapproval, Bow (Arica Himmel) indulges a newfound love of rap music on Mixed-ish. Meanwhile, Harrison (Gary Cole) tells Denise (Christina Anthony) she deserves to be treated better by the men in her life. 9:00 PM ET on ABC

NEW EPISODE: When Bow (Tracee Ellis Ross) starts receiving mail addressed to "Doctor Rainbow Johnson," Dre (Anthony Anderson) has a crisis of confidence on Black-ish. Later, Diane (Marsai Martin) and Mason (Emerson Min) embark on a secret romance. Los Angeles Mayor Eric Garcetti guest stars. 9:30 PM ET on ABC

NEW EPISODE: After making a shocking cameo in a Go Fund Me campaign, New Amsterdam's Dr. Goodwin (Ryan Eggold) tries to find an alternative to crowdfunding. Meanwhile, Kapoor (Anupam Kher ) helps a patient accept his new disability, and Reynolds (Jocko Sims) has a hair-raising final day at the hospital. Watch the preview. 10:00 PM ET on NBC

NEW EPISODE: Aaron (Nicholas Pinnock) faces an ethical dilemma on For Life, when he realizes doing the right thing might not necessarily be the most beneficial decision for his case. Watch the preview. 10:00 PM ET on ABC

Mike Attebery is Senior Editor at Primetimer and the author of seven mystery thrillers. Follow him on Twitter at @mikeattebery.