The Masked Singer (9 p.m., Fox) - I can’t say enough about how obsessed I am with this new show, which is based on a popular Korean series. In tonight’s premiere, six celebrities disguised in elaborate costumes face off against each other in a singing competition. Some of them are amazing singers and some of them definitely are not (Fox says the 12 singers share a combined 65 Grammy nominations, 16 multi-platinum albums, 16 Emmy nominations, nine Broadway shows, four Super Bowl titles and four stars on the Hollywood Walk of Fame). We start tonight with Peacock, Hippo, Monster, Unicorn, Deer and Lion. No spoilers, because I have no idea who these people are, but I’ve seen the first two episodes and have seriously wondered if Cam Newton is in this first bunch. Could he be? Nah. But maybe? There’s an entertaining panel comprised of Robin Thicke, Ken Jeong, Jenny McCarthy and Nicole Scherzinger and they are there to question the singers about their identity and make guesses (which are sometimes really dumb). Nick Cannon hosts. This is on right after the Season 2 premiere of “Gordon Ramsay’s 24 Hours to Hell and Back.”
Also on tonight . . .
Grown-ish (8 p.m., Freeform) - In the Season 2 premiere, Zoey, Ana and Nomi move into a shabby off-campus apartment and have to quickly adjust to each other as roommates.
Mythbusters Jr. (9 p.m., Science) - In this new series, the high-energy Adam Savage and a team of super impressive young scientists from around the country put duct tape to the test and test whether it can be used as a viable parachute and if you can actually drive on tires made of duct tape. The kids here are pretty incredible, and include a 12-year-old astrophysics prodigy who is a sophomore in college. The premiere is so much fun — you’ll have a smile on your face the whole time. Bonus: North Carolina native and N.C. State graduate Tamara Robertson is credited as a senior design consultant on the show. Let’s hope she gets some screen time this season.
NOVA (9 p.m., PBS / UNC-TV) - The Season 46 premiere looks at “Pluto and Beyond,” as New Horizons prepares to fly by an object known as MU69 on Jan. 1, 2019 -- expected to be the most distant flyby in NASA’s history.
Some programming descriptions are provided by networks.