According to the Hollywood Reporter, the first broadcast TV showing of the trailer for The Matrix Reloaded will be during NBC's Arena Football broadcast on April 13th.  According to the report, no cash will change hands, as NBC views it as a promotion for its Arena Football broadcast, and Warners views it as free advertising for its movie.  The trailer showing will be promoted in house organs of the two companies, for example on affiliates and network spots by NBC, and on Access Hollywood by Warners.