Never heard of the Pot. 

Not exactly prog, though, is it? 

That reminds me - Mama and Abacab.

Mr Crimson Flower King - apparently the Pot was a number five in the US, correct me if I'm wrong.

The only song by them I ever heard on the radio was "blackest eyes" from In Absentia right when it first came out and only one time. I remember the dj saying that this band started out as a joke between two guys. Yeah, something like that. 

There was prog revival in the 90s, but it just did not get to mainstream. For instance, Marillion, Pendragon, IQ and some other neoprog acts matured beautifully, progressive metal boomed, Porcupine Tree started, also Spock's Beard, The Flower Kings, Ayreon, to name the few.

 

I think it was a matter of choice of major labels to pursue other genres, more accessible, like rap, latin stars, more accessible rock stars like Maiden or Metallica, nu metal. I can imagine Transatlantic's "We All Need Some Light" or Dream Theater's "Through Her Eyes" getting more radio space and being hummed by people on the streets like Adele or Ed Sheeran or Lana Del Rey. They are equally great, catchy tunes. But lacked promotion.

It also has its better side: artistic freedom. If Transatlantic wanted to put 30 minutes long song on an album, they just did it. And there was no major producer asking: how to promote it. 

And somehow good prog found its audience, thanks to the sites like ProgArchives. There were acts, whose tickets were not so easy to obtain. And so what, if Neal Morse or Andy Tillison are not putting absurd demands in their riders, not buying islands or jet planes? Good prog does not need such things.

There was a minor prog revival in the 90's. Other than Dream Theater I don't believe there were any real bonafide prog hits in that decade though. 

 

Babooshka was a hit (number 5 in the UK) and she's had others since then - Rubber Band Girl, King of the Mountain and Wild Man Am I allowed to mention them without posting massive pictures of their covers?

Muse - several hits although mostly from the poppier side of their catalogue

Mansun - Wide Open Space

Kate Bush - King of The Mountain

Radiohead - a lot of their songs have had enormous impact and air time. 

David Bowie -  Lazarus,  Blackstar 

Kate Bush - Running Up That Hill, Cloudbusting, Hounds of Love 

Talk Talk - Life's What You Make It, I Believe in You 

Björk -  Jóga, Hyper-Ballad, probably half a dozen more.

Nine Inch Nails - Hurt

It's easy to see that most post-1979 prog-related hits are all sophisticated pop songs. You can potentially expand this list by quite a lot by being more inclusive to psychedelia-influenced indie bands like The Flaming Lips and countless others. You could possibly expand even more with adventurous alternative R&B of the past 5 or so years? There's some psych influence there. 

Lets see Peter Gabriel, Genesis, Pink Floyd, Saga, Alan Parsons Project, Yes, Asia.....all had hits that were played on the FM radio, many still are.

It's interesting. I remember hearing "heat of the moment" and other songs from the first Asia album(as well as their second but mostly "don't cry") as well as tracks by Saga, The Alan Parsons Project and stuff from 90125. I don't hear any of that stuffd on the radio anymore (not even "owner" believe it or not or if I do it's quite rare). I would say about at least 70 percent of the people who know about this stuff these days or listen to it are prog fans. The one exception might be 80's Genesis which I still hear on the classic rock station quite a bit and  a few songs by Rush. 

......I hear a TON of grunge here . I'm not a Nirvana fan, but I tend to hear more Pearl Jam than Nirvana but makes sense as they are still together.

Seattle is a huge classic rock market and metal.

Don't hear Saga as much or Parsons, the others are common. 

Muse was what I was gonna say. Yes the hits are generally the less prog stuff, but then there is Knights Of Cydonia.