1) “Gandhi” (1982), 8 p.m. to midnight ET, Turner Classic Movies. This richly crafted movie remains relevant, showing the power of protest, especially when done non-violently. It won Academy Awards for best picture, director Richard Attenborough, star Ben Kingsley (shown here) and five more.
2) “The Voice” and “American Idol,” 8 p.m., NBC; 9-11 p.m., ABC. We can spend the night watching reruns of singers auditioning, First is the new ratings champion – already in its 20th edition, because it does two each season. Then is the original: “Idol” (with one per year) has started its 19th season, its fourth on ABC, after 15 on Fox. Tonight, it visits three California cities.
3) “Debris,” 10 p.m., NBC. If you missed Monday’s opener, catch it now. It starts with some cops-and-crooks action, adds some other-worldly moments, then adds surprising emotions. The basic notion is that an alien spacecraft has exploded, scattering pieces over the hemisphere. They can toy with physics and with our minds; an international team tries to find the pieces before bad guys can grab them.
4) “9-1-1,” 8 p.m., Fox. Rumors that the firehouse is haunted start to seem true, amid a day of bizarre emergency calls. One guy has duct-taped himself to a billboard; another is destroying his own restaurant. Also in this rerun, there’s a garage full of fireworks.
5) ALSO: This might be the day to watch (or record) a first-rate movie series. AMC has “Ghostbusters” films at 1 and 3:30 p.m., followed by the “Back to the Future” ones at 6, 8:30 and 11. HBO has the “Rocky” series, from the 1976 original at 8 p.m. to the 2006 return at 5 a.m.; others are at 10 p.m., midnight, 1:40 a.m. and 3:15 a.m.