WWE Heat (formerly known as Sunday Night Heat and also known as Heat) is an American professional wrestling television program that was produced by World Wrestling Entertainment (WWE) and aired from August 2, 1998 to May 30, 2008. Originally produced under the World Wrestling Federation (WWF) banner, it aired on USA Network (1998–2000), MTV (2000–2003), and TNN/Spike TV (2003–2005) in the United States, CTV Sportsnet in Canada, and Channel 4, Sky1, and Sky Sports in the United Kingdom. From 2002, due to the WWE brand extension, Heat served as a supplementary show to the Raw brand, focusing more exclusively on its mid-card performers and matches, and was recorded before the week's television taping of Raw