The A.V. Club by Erik Adams

It’s a clever, charming concept, executed with the Workshop’s customary care and craft.

The New York Times by James Poniewozik

It’s charmingly true to the character, who in retrospect has the kind of insistent energy, nosiness and thirst for attention that makes him perfect for late-night. “Not-Too-Late” is actually closer than “Muppets Now” to the format of the old “Muppet Show,” with chaos backstage and Bert and Ernie squabbling in the control room. But the spirit is all Elmo.

Decider by Joel Keller

It's a fun extension of the 'Sesame Street' brand and a good way for kids to get into the fun that a talk show format can be.

Salon by Ashlie D. Stevens

"The Not-Too-Late Show with Elmo" is definitely less wry than that show ["The Sack Lunch Bunch,"] but is created with the same kind of intentionality. For all its subtle nods to the adults in the audience, at the end of the night (well, evening, since Elmo's bedtime is at 7:30pm) it is a show for children, in all the best ways.

Los Angeles Times by Robert Lloyd

It is completely in the “Sesame” spirit while nailing the look and rituals of late-night television — note the sippy cup on Elmo’s desk — and in its mix of backstage and onstage scenes (Cookie Monster as co-host, Bert and Ernie in the director’s booth), it is very much a child of “The Muppet Show.”

The Hollywood Reporter by Daniel Fienberg

The meta, inside baseball side of The Not Too Late Show with Elmo is funny, smart and packed with likable gags and puns and general silliness. ... It's a gimmick that demands careful celebrity curation and the three episodes sent to critics are marked by solid guest selection and participation. ... I dug its for-all-ages hijinks much more than I expected to.

Variety by Caroline Framke

If Elmo and his benevolently gormless brand isn’t your thing, his “not too late show” might not be, either. But if you’re in need of a quick distraction while wrestling your kid in and out of the bath, you could do a lot worse than letting Elmo take the reins for a minute.

Pittsburgh Post-Gazette by Rob Owen

It’s unclear who “Not Too Late” is aimed at — certainly not kids, who aren’t known for their love of celebrity interviews. Maybe it’s meant for die-hard Muppets fans?

Time by Judy Berman

It’s easy to imagine toddlers watching episodes on repeat. For adults, however, only the occasional guest—like John Mulaney, who’s shaping up to be his generation’s premiere good-with-kids comic—can make such a concentrated dose of Elmo’s high-pitched squeal worth enduring. The Muppet Show this ain’t.