Dr. Seuss Gets the Live TV Musical Treatment in NBC's The Grinch Musical!

As Primetimer's Joe Reid wrote yesterday, it's become more and more difficult to tell which Grinch is which when consulting the TV listings any given day during the holiday season. Adding to the confusion tonight is Dr. Seuss' the Grinch Musical!, a brand new staged production starring Matthew Morrison in the title role.

Also tonight: The Masked Singer presents a new holiday special, The Great Holiday Light Fight returns for Season 8, and MTV rolls out a new spy-themed edition of The Challenge. Here's what's new and noteworthy on TV this Wednesday:

HOLIDAY SPECIAL: Glee alum Matthew Morrison slips into his finest green fur for NBC's staged production of Dr. Seuss' the Grinch Musical!, the network's new take on the old scallywag whose small heart grows three sizes in one day. Watch preview. 8:00 PM ET on NBC

HOLIDAY SPECIAL: While we await next week's two-hour season finale, tonight's Masked Singer Holiday Sing-a-Long features this season's final three performing never-before-heard holiday songs with all-new animated clues, while the already unmasked celebrities join together to perform their favorite holiday jingles. Watch preview. 8:00 PM ET on FOX

SEASON PREMIERE: Reality TV's ultimate all-star game returns for its 36th season as The Challenge takes to Iceland for a new spy-themed installment dubbed "Double Agents." Watch trailer. 8:00 PM ET on MTV

SEASON PREMIERE: Returning for its eighth season, The Great Christmas Light Fight gives families from across America the chance to show off their extreme Christmas lighting displays while competing for a $50,000 prize. Watch trailer. 8:00 PM ET on ABC

DOCUMENTARY PREMIERE: HBO's latest true crime doc Alabama Snake looks at the events leading up to October 4, 1991, when Darlene Summerford says her Pentecostal preacher husband Glenn tried to kill her by forcing her hand into a rattlesnake bed. Read our review. 9:00 PM ET on HBO

HOLIDAY SPECIAL: It wasn't supposed to end like this, but the Ashley Garcia: Genius in Love Christmas Special will mark the end of the series, which Netflix canceled after this special was already in the can. Streaming on Netflix

HOLIDAY SPECIAL: Like Ashley Garcia, The Big Show has also been canceled, making The Big Show Christmas Special the final sendoff for WWE Superstar Big Show's comedy series. Streaming on Netflix

SPECIAL PRESENTATION: Charlie Brown would no doubt be horrified, but this is one holiday tradition that isn't going anywhere. The Greatest Holiday Commercials Countdown 2020 shines a light on the spots that have captured America's attention at the end of a very strange year. 9:00 PM ET on The CW

HOLIDAY MOVIE: After making his family "disappear," young Kevin McCallister (Macaulay Culkin) is Home Alone and forced to do battle with the Wet Bandits while holding down the homestead in this holiday favorite. 6:00 PM ET on Freeform

HOLIDAY MOVIE: A syrup-guzzling Elf named Buddy (Will Ferrell) journeys from the North Pole to New York City to search for his long lost father during the holidays. 6:00 PM ET on AMC

Mike Attebery is Senior Editor at Primetimer and the author of seven mystery thrillers. Follow him on Twitter at @mikeattebery.