Impact Wrestling (formerly known as TNA iMPACT!) is a professional wrestling television program for Total Nonstop Action Wrestling (TNA) that currently airs in the United States and Canada on Spike. Impact Wrestling is filmed at the Impact Wrestling Zone (Soundstage 21 at the Universal Studios Florida theme park of Universal Orlando Resort in Orlando, Florida) where admission is free. Tapings of the show take place on Monday and Tuesday night and are aired on its 9pm Thursday time slot. The show's current opening theme is "Change Me" by Phather, Sun and the Holy Ghost.
Impact! generally features four to seven matches over the course of the two hour show, as well as numerous interviews and segments interspersed between the matches. Due to the nature of the wrestling business, advertisements for merchandise and upcoming pay-per-view events often serve as bookends for the commercial segments.
When Impact! was on Fox Sports Net, all matches had a time limit (10 minutes for normal singles matches and 20 for tag team matches and the main event) and the station's Fox Box was used. In the event of a time limit draw, the winner was determined by the NWA Championship Committee, a group consisting of three veteran wrestlers. Since leaving the channel, TNA discarded the time limit concept, but in late 2009, TNA brought back the time limits.