KFC briefly introduced a limited-time marketing promotion called "The Bitcoin Bucket." This promotion was primarily a gimmick and was only available in a select few KFC locations in Canada. Here are the key details about "The Bitcoin Bucket" promotion:

1. Bitcoin Payment: "The Bitcoin Bucket" allowed customers to purchase a bucket of KFC's fried chicken using Bitcoin as a form of payment. It was one of the first instances where a major fast-food chain accepted cryptocurrency for food purchases.

2. Limited Availability: The promotion was available for a short period and in a limited number of Canadian KFC locations. It was seen as a novel way to generate buzz and attract tech-savvy customers.

3. Tech-Savvy Marketing: KFC's decision to accept Bitcoin for this promotion was largely a marketing stunt to tap into the growing interest in cryptocurrencies at the time. It was a way to generate media attention and engage with a younger, tech-oriented audience.

4. Cryptocurrency Awareness: While "The Bitcoin Bucket" was more of a marketing ploy than a significant shift in payment methods for KFC, it did raise awareness about cryptocurrencies and their potential use in everyday transactions.

It's worth noting that such marketing promotions are often short-lived and intended to create buzz rather than represent a long-term business strategy. As the cryptocurrency landscape is highly volatile and subject to regulatory changes, the acceptance of cryptocurrencies for everyday purchases like fast food can vary and did be subject to specific conditions.