I remember they were on Midnight Special quite a lot. They always had them or the Carpenters or Paul Williams or some kind act for the older crowd. I was in my 20's when that show ran for about ten years, had everbody from Uriah Heep to Fleetwood Mac to Wishbone Ash, it was great. That was before Letterman after Carson, they would be on Friday nights. I didn't mind them because we didn't have to hear the co-host Helen Reddy sing, she was the worse "I Am Woman, Hear me Roar". Wolfman Jack was the other host, he was cool.
BTW, the original MacArthur Park was released by the actor Richard Harris. I remember him doing that on Ed Sullivan about 1963, I still love that song. If you haven't listened to the lyrics, you owe to yourself to do that.
https://www.youtube.com/watch?v=bQmZNbVBeIk
MacArthur Park
Spring was never waiting for us, girl
It ran one step ahead
As we followed in the dance
Between the parted pages and were pressed
In love's hot, fevered iron
Like a striped pair of pants
MacArthur's Park is melting in the dark
All the sweet, green icing flowing down
Someone left the cake out in the rain
I don't think that I can take it
'Cause it took so long to bake it
And I'll never have that recipe again
Oh no!
I recall the yellow cotton dress
Foaming like a wave
On the ground around your knees
The birds, like tender babies in your hands
And the old men playing checkers by the trees
MacArthur's Park is melting in the dark
All the sweet, green icing flowing down
Someone left the cake out in the rain
I don't think that I can take it
'Cause it…