Erica and I passed a shop on while garage sailing last Saturday whose name ended in -o-rama. We speculated on where the ending -o-rama originated. It has a retro feel to it. I said it sounded like it was from the 1910 or 1920 era, while Erica thought it a 1950s thing. After 20 seconds of Googling I found this:
Horama is Greek for ‘sight’, coming from horan which means ‘to see.’ The suffix -orama as in panorama, diorama and cyclorama comes from the Greek. Bill Bryson, in Made in America, explains that Norman Bel Geddes’s Futurama exhibit at the New York World’s Fair of 1939 is what inspired later compounds using the variation -o-rama. This exhibit was immensely popular and showed what the world was supposed to be like in 25 years (1964). Futurama is merely the application of English -orama to future — literally ‘vision of the future’.
So, Bagel-O-Rama is a Vision of Bagels.
O-Rama-O-Rama is a vision of visions.
I have pictures of my Dad at the 1939 Worlds Fair standing on line at Futurama.