On The Price is Right, if you are the winner and if you're...

1974-1998: Less than $100 away
1998-present: $250 or less (or in Drew Carey's terms "within $250")

from the retail price of your own showcase, you win both showcases.

From 1974-1980, the bells and whoops were used to siginify that moment. Here's the original 1974 version of the Double Showcase win sound.