The upside-down purple cow is back for its longest season ever - 12 entertaining weeks.

In general, purple cows live in fields where it's possible to reinvent what people expect.

Just because it's stupid doesn't mean it's a purple cow!

Sponsors choose their own designs, so purple cows are not beyond the pale.

You don't create a purple cow by being different.

A purple cow isn't a fancy gimmick, or something you slap on to last year's item.

A purple cow is a remarkable story, a story that spreads.

Sometimes, a purple cow is just purple because it's best at serving a nascent market.

He calls a remarkable product or service a purple cow.

Not the kind of purple cow I meant.