Given that sports and pop culture, are followed with almost religious fervor here on our Prime, I can't help but feel that adding sports seasons, interplanar TV series would be an interesting addition to UP. There would be some need for entertainment, and with the coming of the modern age, our modern pop culture seems ripe for the picking.
Modern cities don't feel particularly modern unless they have some features like these. Anyone have ideas on some possible versions of planar pop culture?
Quickie ideas on sports and the outer plane:
Pantheons-each pantheon has a particular sport they favor, which each power fielding there own team.
On the Planes of Law, (american) football is big. Each plane has its own league (Baator Football is like XFL on speed). Interleague play is common.
The Abyss is home to a sport that is equal parts basketball and gang warfare. Soccor is also popular, if only for the excuse to amass an Abyssmal Hooligan Horde.