Mike Hughes

) Pro football draft, 8-11:30 p.m. ET, ABC, ESPN and NFL Network. Once barely noticed by TV, this has become an adventure that gobbles up 11 hours over three days, on three networks. And that’s not counting the previews; ESPN starts at 7 p.m., the NFL Network starts (really) at 1. Those two networks will focus more on stats and such; ABC leans to the people side, starting with Caleb Williams (shown here), whom the Bears are expected to grab with the first pick. Read more…

1) “The Masked Singer,” 8 p.m., Fox. This may be your only chance to see Ken Jeong and Robin Thicke do a Spice Girls song. The theme is “girl groups,” so they’ll open the show singing “Wannabe” with fellow judges Rita Ora and Jenny McCarthy (they’re all shown here). Later, past contestants Carnie Wilson and Raven-Symone will also perform; current ones will do such songs as “I’m So Excited.” Read more…

1) “Shogun” finale, 10-11:30 p.m., FX; also, Hulu. Gorgeous visually, yet relentlessly morose, the finale ends solemnly. We see the lethal result of the castle raid and its aftershocks. We also learn of Toranaga’s long-range scheme and see hints of the fate of Blackthorne, the English mariner. Overall, the miniseries (shown here) could be considered masterful or merely a long monotone. Read more…

1) Earth Day fun. This is the day when TV shows us the Earth at its best. That’s led by the National Geographic Channel, with epic mini-series. There’s “Secrets of the Elephant” (shown here) at 9:50 a.m., “Queens” at 12:50 p.m. and the superb “Secrets of the Octopus” (which debuted Sunday) from 7:08 to 10 p.m. Disney+ has the NatGeo shows, debuts “Tiger” and has 15 previous nature epics. Read more…

1) “Secrets of the Octopus,” 8-10:52 p.m., National Geographic Channel. Ignored (or feared) for centuries, octopuses (shown here) are the new media stars. They deserve the attention. They can change color, shape and image; they can hide from a predator, befuddle a prey, befriend a scientist. This terrific three-parter reruns at 10:52 p.m. today and then at 7:08 p.m. Monday, in an Earth Day marathon. Read more…

1) Basketball playoffs begin. LeBron James and the Los Angeles Lakers needed an extra game (via the “play-in” phase) to get here, but now they’re in the playoffs. At 8:30 p.m., ET on ABC, they visit the Denver Nuggets (shown here ina previous game. That wraps an opening day that has games on ESPN at 1, 3:30 and 6 p.m. in Cleveland, Minnesota and at the New York Knicks. Read more…

1) “Now Hear This,” 9 p.m., PBS. As a young violinist, Scott Yoo was “tortured” by the demands of Nicolo Paganini’s music. Now he explores the legends – some true, some not – surrounding the composer. He also has interesting (but fairly pointless) looks at the masters of other fields. That’s followed at 10 p.m. by splendid virtuosos – saxophonist Joshua Redman, his band, and singer Gabrielle Cavasso (shown here). Read more…