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This paper introduces the Terrestrial Digital Video Broadcasting DVB-T, stating its innovative aspects and its major advantages for data broadcasting, particularly TV broadcasting. It also presents the experimental DVB-T network built up by Retevisión in the framework of the Spanish VIDITER project (Terrestrial Digital Video) and the European ACTS VALIDATE (Verification and launch of Integrated Digital Advanced Television in Europe) and ACTS MOTIVATE projects (Mobil Television and Innovative Receivers). The experience and some of the results of the different tes carried out by Retevisión are afterwards discussed. WHY DIGITAL TV BROADCASTING? Generally, the digital technology presents some major advantages in baseband efficiency, flexibi and RF performance that make its use very attractive to broadcasters. Effectively, when addressing to TV broadcasting, the digital signals are more robust and the spectrum use is more efficient; more than one program may be broadcasted using the same bandwidth and having even better picture quality. Moreover those digital signals are easier to process and more computer friendly. The only issue is how long will it take to completely change the technology considering the large number of analogue TV receivers worldwide. Some transition period will probably be started in which both technologies coexist (broadcasting the same TV contents in analogue and digital, ofte called SIMULCASTING, and some additional only-digital contents).