Samantha Brown's Cash Attack

Samantha Brown's Cash Attack (or simply Cash Attack) was a broadcast piloted, ambush-styled game show where Samantha Brown ambushes unsuspecting travelers around the country with her "CASH ATTACK" - a surprise trivia game with the opportunity to win up to $3,600.

Premise
The game is simple: three rounds of three questions, three strikes and you're out, you can take the money and run or risk it all on the next question. Make it through all three round and enter the "Travel Challenge" - a chance to double your money and win a travel prize...or lose everything.

Link
site description of the show