While no official crossover or promotion ever occurred between the family-friendly CBS game show and the adult site, the two collided in a 2011 episode that became a viral sensation. The Viral Moment: A Questionable Wardrobe Choice
Here's an interesting write-up:
So why has the Bangbus remained such a beloved part of "The Price is Right" for so long? There are several reasons: the price is right bangbus
The Price is Right has had only three hosts in its nearly 50-year history: The Price is Right Bangbus: A Look Back