The big event for the movers and shakers named for the annual “Time 100” (ABC, 10 p.m.) was actually meeting in  a big summit. That was all canceled for this year, so the pioneers, artists, leaders, icons and titans will have to make do with this one hour special. Can they even fit all of their names in it? 

At any rate, Halsey, Jennifer Hudson and The Weeknd will perform at the event that will include appearances from Prince Harry and Meghan Markle, Trevor Noah, Sandra Oh, John Legend and Kumail Nanjani song others 

More series that have already shown on cable migrate to broadcast TV in lieu of an actual fall season. the latest is “Cosmos: Possible Worlds” (Fox, 8 p.m.) with Neil deGrasse Tyson that shows on National Geographic in spring. Unlike everything else, spring hasn’t changed that much since then. 

Successful coaches from a variety of sports are profiled on the new series “The Playbook” (Netflix, streaming). 

Each election year, “Frontline” (PBS, 9 p.m.) is known for creating deep, biographic works on each of the Presidential candidates. But there’s such an excess of politics this season, it’s hard to get excited about “The Choice 2020: Trump vs. Biden.”

There is a fresh spin on getting the young to vote, though, with the limited series “Kal Penn Approves This Message” (Freeform, 10:30 p.m.), featuring the actor who also worked at the White House. It’s not to be confused with the painfully timely new series also starting tonight, “Cal Fire: West Coast Fires” (Discovery, 10 p.m.) which may be hard to put out. 

The amiable British sitcom “Dead Pixels” (CW, 8 p.m.) has another British aspect: Its season is way too short, and it’s all over tonight.