1) “CMT Celebrates Our Heroes,” 8 p.m., CMT, rerunning at 10. Country stars were the first to embrace this at-home music trend. When their April awards show was postponed, they filled a CBS special with songs from homes, barns and beyond. Now they offer music plus tributes. The line-up includes groups (Lady Antebellum, shown here, and Little Big Town) and individuals — Carrie Underwood, Thomas Rhett, Miranda Lambert, Darius Rucker, Kelsea Ballerini, Sam Hunt, Kristen Bell, Lauren Daigle, Brandi Carlisle and more.
2) “The 100,” 8 p.m., CW. Two crises grip a fragile world. Clarke has arrested Russell and plans to execute him … a dangerous notion when you consider his zealous followers. At the same time, Raven battles a techno-failure that endangers everyone. The result is taut and tense … with some revealing dialog in the final minutes.
3) “Game On,” 8 p.m., CBS. Now we have three elite athletes doing silly things. The teams are led by greats in tennis (Venus Williams) and football (Rob Gronkowski). This time, Gronk’s team adds Ronda Rousey, who once won six straight mixed-martial-arts championship bouts in an average of under three minutes. And what are these skilled folks doing? Among other things, they give a teammate a bowling-ball helmet and propel him to knock down pins. It’s that kind of show.
4) “Up” (2009) and “Agents of SHIELD,” 8 and 10 p.m., ABC. This final “SHIELD” season is being boosted by top movies as lead-ins. Tonight is an animated gem – the prologue is both masterful and heartbreaking – about an old man, a young boy and a floating house. That leads to an episode in which the agents question their assignment to preserve the timeline.
5) “What We Do in the Shadows,” 10 p.m., FX. After 10 years of faithful service, the long-suffering Guillermo finally gets a weekly day off and an occasional 15-minute break. Alas, he’s suddenly needed more than ever, when his master is kidnapped by witches. It’s another sharply funny episode.