Buffer began using the phrase "Let's get ready to rumble!" in 1984. By 1992, he acquired a federal trademark for the phrase. Buffer uses his famous phrase in various licensing deals including the platinum selling album Jock Jams by Tommy Boy Records, the video games Ready 2 Rumble Boxing, Ready 2 Rumble Boxing: Round 2 for the PlayStation 2, Nintendo 64, Dreamcast and Game Boy Advance and Greatest Heavyweights of the Ring for the Sega Genesis and numerous other products. In addition, he has used variations of the phrase in advertisements, including the popular commercial for Mega Millions in which he says "Let's get ready to Win Big!" and the Kraft Cheese commercial in which he says "Let's get ready to Crumble!" and most recently for Progressive Insurance in which he says "Let's get ready to bundle!" The phrase, "Are you ready to rumble?" is spoken in the 1957 television show Maverick, titled "Stage West" (episode 6, season one). by the stage coach driver to the passengers as he prepares to leave in the stage coach. As of 2009, the catchphrase has generated $400 million in revenue from licensing the trademark.